The 2-in-1 laptops are meant for people who want to be different and own a multipurpose device that can transform into a tablet within a second. Portability, power, and battery life are also important for buyers because very often, these devices are used for office or content creation needs. If you want to stand out among the other people around you (and if money isn't a problem) the Lenovo Yoga Book 9 (13IRU8) is a device that has a unique visual appearance thanks to its two OLED touchscreen displays for productivity boost. Yes, you heard it right, this machine lacks a built-in keyboard and touchpad but you can use them virtually on the second panel if you want. Lenovo has also provided some additional gadgets in the box if you prefer to operate with this extraordinary machine as a normal laptop but we'll talk about this in a minute. Lenovo Yoga Book 9 (13IRU8) can be used by everyone - people in the office will value its multitasking abilities thanks to the two touch panels, you can also have fun playing games on the main screen and watch videos on the second panel (or you can also use both screens for gaming which is super cool), and daily tasks such as watching videos and checking your email look way more fun when you can utilize both screens at the same time for these home "duties". Hardware-wise, the device relies on the Raptor Lake-U series CPUs which is the right choice for a transformer like this one (well, a 28W P processor is too much in terms of heat dissipation for a notebook that has a display above its motherboard). The gadget is also configured with a fast LPDDR5x RAM and it has a Gen 4 SSD under the hood. We tested the performance of the laptop and its features, and now we are impatient to share with you all the info we gathered. Let's go! You can check the prices and configurations in our Specs System: https://laptopmedia.com/series/lenovo-yoga-book-9-13-2023/ Specs, Drivers, What's in the box Drivers All drivers and utilities for this notebook can be found here: https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/yoga-series/yoga-book-9-13iru8/downloads What's in the box? Inside the package, you will get the laptop itself, some manuals, a 65W USB Type-C charger, as well as a Lenovo Digital Pen 3 with 4096 levels of pressure sensitivity. You also get a Bluetooth keyboard and a folio kickstand. Some devices are bundled with an optional Bluetooth mouse. Design and construction The build quality of this gadget is nothing but fantastic. It is entirely made out of aluminum with an anodized finish. The only color option is Tidal teal. The minimalist design is modern and mature, with very little branding on the lid. The base and the lid have polished sides all around them. It makes the devices very grippy and it also contributes to an even more premium look. The weight is on the low side for a two-screen laptop - 1.34 kg, while the profile thickness is 15.95 mm. Sure, slimmer devices exist but they are lacking a second panel beneath the main one. The hinge houses two front-facing 2W Bowers & Wilkins speakers. The mechanism is smooth and you can open the lid with a single hand up to around 85°. After that, the hinge becomes stiffer and you are going to need two hands. The bezels around the two panels are thin, and the top one on the main panel has a slight protrusion. It's a home of a 5MP IR camera for Windows Hello (and for the Zero-touch function) that has an E-shutter placed on the right side of the base. In landscape mode, touching the bottom part of the second panel with eight fingers will activate the on-screen keyboard (three taps will bring a touchpad to the screen). The virtual keyboard and touchpad look almost real but using them feels a bit unorthodox, especially because of the lack of key travel. After an hour we started to feel the two virtual replacements a bit more convenient to use. The duo of OLED panels is protected by a glass cover and on top of that, it works effortlessly smoothly with the included Lenovo Digital Pen 3. We spot some tiny flexes on the lid when we twist it in an open position. When the unit is closed, it can bend just a little in the center but in general, the lid is stable. The base is built like a tank and this is very important because you can stack the keyboard on top of it. The machine feels very rigid in tablet mode, moreover, there isn't a built-in keyboard on the base so the device is comfortable for usage in this shape. The notebook can also lay fully flat on your desk and you can value the quality of Lenovo's craft - the laptop looks gorgeous even with the screens turned off. After work, you can play some YouTube videos on one of the displays and play some light casual games on the other. Unfortunately, this machine lacks a fingerprint reader. The tent mode is useful for Web browsing, presentations, etc. Two users can play their own favorite audio or video content separately due to the dual-screen design. When the two panels are spread in a dual portrait way (and the keyboard is placed in front of the stand), this can be greatly appreciated by people in the office, students, teachers, and maybe programmers. With the folio case, you can interact with the laptop in a dual landscape manner with the two screens stacked on top of each other. You can also enlarge windows or an app / document across the two panels by tapping with five fingers on the screen. Or you can drag documents, windows, applications, or whatever you like from one screen to another with the stylus (or by using your fingers, the old-school way). Of source, you can work with the notebook without the fancy accessories and use it as a standard laptop. At least for us, not taking advantage of the 360-degree hinge and the touch capabilities will be a bit strange. Below you can see more ideas regarding different usage modes with or whiteout the keyboard. Speaking of the keyboard, the provided external unit is good for typing (not the greatest though), the key travel is decent and the same applies to the feedback which is averagely clicky, but that's okay for a Bluetooth unit. When placing it on the top of the second panel, the virtual touchpad immediately pops up beneath the board. If you place the Bluetooth unit in the lower part of the bottom display, you can fill up the unused space above it with widgets or other windows. If you remove all the stickers placed on the bottom panel you will enjoy a much neater-looking plate. Speaking of stickers, the Intel Evo one reminds us that the device is based on this Team Blue platform, so we can expect snappy performance and at least good battery life (more on that later). We can also spot four small rubber feet, two narrow openings for the two 2W Bowers & Wilkins woofers (placed below the two rubber feet), and slim ventilation openings that bring fresh air to the cooling fan. The hot air is exhausted through a wide vent placed on the back of the device. It's positioned in front of the hinge, so the lower part of the main display is getting warm when the CPU is under heavy load. As you can see, the lid is much thinner compared to the base that houses the second screen. Ports The port selection is modern but somehow spartan. On the left, there is a single Thunderbolt 4 port. On the other side, we can see a pair of Thunderbolt 4 connectors, an E-shutter switch, and a power button. The Thunderbolt ports support 40Gbps data transfer, Power Delivery 3.0, and DisplayPort 1.4 (for up to 8K 60Hz external displays) functionalities. Display quality, Health impact (PWM), Sound Lenovo Yoga Book 9 (13IRU8) is equipped with two OLED touchscreen panels, model numbers Samsung ATNA33AA02-0 for the main one and ATNA33AA06-0 for the second display. They both come with a 60Hz refresh rate. Their diagonal is 13.3" (33.8 cm), and the resolution - 2880 x 1800p. The panels support the Lenovo Digital Pen 3 stylus. Additionally, the screen ratio is 16:10, the pixel density – 255 ppi, and their pitch – 0.1 x 0.1 mm. The screen can be considered Retina when viewed from at least 34 cm (from this distance, the average human eye can’t see the individual pixels). Viewing angles are good. We offer images at different angles to evaluate the quality. Also, a video with locked focus and exposure. The two displays are almost identical, below you can read info regarding the main panel (the top one). The maximum measured brightness is 371 nits (cd/m2) in the middle of the screen (HDR off) and 372 nits (cd/m2) average across the surface with a maximum deviation of only 2%. The Correlated Color Temperature on a white screen and at maximum brightness is 6250K (average). In the illustration below you can see how the display performs from a uniformity perspective. The illustration below shows how matters are for operational brightness levels (approximately 140 nits). Values of dE2000 over 4.0 should not occur, and this parameter is one of the first you should check if you intend to use the laptop for color-sensitive work (a maximum tolerance of 2.0 ). The contrast ratio of OLED panels is practically infinite, due to their ability to turn off black pixels entirely. To make sure we are on the same page, we would like to give you a little introduction to the sRGB color gamut and the Adobe RGB. To start, there’s the CIE 1976 Uniform Chromaticity Diagram that represents the visible specter of colors by the human eye, giving you a better perception of the color gamut coverage and the color accuracy. Inside the black triangle, you will see the standard color gamut (sRGB) that is being used by millions of people on HDTV and on the web. As for the Adobe RGB, this is used in professional cameras, monitors, etc for printing. Basically, colors inside the black triangle are used by everyone and this is the essential part of the color quality and color accuracy of a mainstream notebook. Still, we’ve included other color spaces like the famous DCI-P3 standard used by movie studios, as well as the digital UHD Rec.2020 standard. Rec.2020, however, is still a thing of the future and it’s difficult for today’s displays to cover that well. We’ve also included the so-called Michael Pointer gamut, or Pointer’s gamut, which represents the colors that naturally occur around us every day. The yellow dotted line shows Lenovo Yoga Book 9 (13IRU8)'s color gamut coverage. Its display covers 100% of the sRGB/ITU-R BT.709 (web/HDTV standard) in CIE1976, and 100% of DCI-P3, ensuring a super vibrant and attractive picture. We tested the accuracy of the display with 24 commonly used colors like light and dark human skin, blue sky, green grass, orange, etc. Below you can compare the scores of the Lenovo Yoga Book 9 (13IRU8) with the default settings - HDR off, and the one with our Gaming and Web design profile with the P3-D65 color space. The next figure shows how well the display is able to reproduce really dark parts of an image, which is essential when watching movies or playing games in low ambient light. The left side of the image represents the display with stock settings, while the right one is with the “Gaming and Web Design” profile activated. On the horizontal axis, you will find the grayscale, and on the vertical axis – the luminance of the display. On the two graphs below you can easily check for yourself how your display handles the darkest nuances but keep in mind that this also depends on the settings of your current display, the calibration, the viewing angle, and the surrounding light conditions. Response time (Gaming capabilities) We test the reaction time of the pixels with the usual “black-to-white” and “white-to-black” method from 10% to 90% and vice versa. We recorded Fall Time + Rise Time = 5 ms. After that, we test the reaction time of the pixels with the usual “Gray-to-Gray” method from 50% White to 80% White and vice versa between 10% and 90% of the amplitude. Health Impact: PWM (Screen flickering) Pulse-width modulation (PWM) is an easy way to control monitor brightness. When you lower the brightness, the light intensity of the display is not lowered, but instead turned off and on by the electronics with a frequency indistinguishable to the human eye. In these light impulses, the light/no-light time ratio varies, while brightness remains unchanged, which is harmful to your eyes. You can read more about that in our dedicated article on PWM. Lenovo Yoga Book 9 (13IRU8)'s display uses PWM with a low frequency up to 100 nits. Above that, we see slightly weaker pulsations. Health Impact: Blue light emissions Installing our Health-Guard profile not only eliminates PWM but also reduces the harmful Blue Light emissions while keeping the colors of the screen perceptually accurate. If you’re not familiar with the Blue light, the TL;DR version is – emissions that negatively affect your eyes, skin, and your whole body. You can find more information about that in our dedicated article on Blue Light. Health Impact: Gloss-level measurement Glossy-coated displays are sometimes inconvenient in high ambient light conditions. We show the level of reflection on the screen for the respective laptop when the display is turned off and the measurement angle is 60° (in this case, the result is 144 GU for the main display and 142 GU for the second panel). Sound Lenovo Yoga Book 9 (13IRU8)'s Bowers & Wilkins speakers produce a sound of very good quality. Its low, mid, and high tones are clear of deviations. Buy our profiles Since our profiles are tailored for each individual display model, this article and its respective profile package are meant for Lenovo Yoga Book 9 (13IRU8) configurations with 13.3" Samsung ATNA33AA02-0 (2880 x 1800) OLED. *Should you have problems with downloading the purchased file, try using a different browser to open the link you’ll receive via e-mail. If the download target is a .php file instead of an archive, change the file extension to .zip or contact us at bg.laptopmedia@gmail.com. Read more about the profiles HERE. Performance: CPU, GPU, Gaming Tests CPU options You can choose between two CPU variants - the Intel Core i5-1335U and Core i7-1355U. We got the latter because we want to test the fully-specced version of the laptop. Both processors have 12MB cache size, two P-cores, and ten E-cores for a total of 16 threads (the P-cores support Hyperthreading). GPU options Depending on which CPU you will choose, the two possible iGPU variants are the following - the Intel Iris Xe Graphics G7 (80EU) and Intel Iris Xe Graphics G7 (96EU). Gaming tests CS:GO HD 1080p, Low (Check settings) HD 1080p, Medium (Check settings) HD 1080p, MAX (Check settings) Average FPS 168 fps 135 fps 88 fps DOTA 2 HD 1080p, Low (Check settings) HD 1080p, Normal (Check settings) HD 1080p, High (Check settings) Average FPS 139 fps 96 fps 66 fps You can use the device for light gaming - CS:GO can be played with 88FPS on Max details which is a good result for 2-in-1 laptops with two screens. The iGPU can allocate up to 8GB of system memory. [eBook Guide + Tools] How to MAX OUT your Laptop Temperatures and comfort, Battery Life Max CPU load In this test we use 100% on the CPU cores, monitoring their frequencies and chip temperature. The first column shows a computer’s reaction to a short load (2-10 seconds), the second column simulates a serious task (between 15 and 30 seconds), and the third column is a good indicator of how good the laptop is for long loads such as video rendering. Average P-core frequency; Average E-core frequency; CPU temp.; Package Power Intel Core i7-1355U (15W TDP) 0:02 - 0:10 sec 0:15 - 0:30 sec 10:00 - 15:00 min Lenovo Yoga Book 9 (13IRU8) 2.23 GHz @ 2.58 GHz @ 76°C @ 40W 2.13 GHz @ 2.42 GHz @ 85°C @ 35W 1.64 GHz @ 2.03 GHz @ 77°C @ 24W ASUS Zenbook S 13 OLED (UX5304) 3.46 GHz @ 2.47 GHz @ 80°C @ 41W 3.06 GHz @ 2.24 GHz @ 91°C @ 31W 2.36 GHz @ 1.68 GHz @ 75°C @ 21W The Lenovo Yoga Book 9 (13IRU8) doesn't have a big ventilation grille on the bottom plate and above the motherboard is placed an OLED display with a glass cover which doesn't sound like an optimal solution for heat dissipation and overall cooling. The E-cores of the Core i7-1355U are always boosting higher compared to the P cores which is a common way to deal with the heat that is coming from the CPU. Still, the clocks are decent as well as the thermals of the chip. The power limit is also higher than the 15W base value. Comfort during full load Correspondingly to the not-so-high CPU clocks, the comfort under load is shockingly good. The fan takes its time before spinning with an audible RPM speed which makes it almost quiet for short and medium loads, and near-silent in idle. Under heavy stress, you can slightly hear the fan but the noise isn't loud at all. In this scenario, the upper part of the second screen feels worm but it's comfortable for usage. This only applies during long 100% CPU stress with the "Extreme performance" preset turned on. If the processor is used for light tasks, the noise and the heat levels will be even lower (especially if you activate the "Intelligent Cooling" or the "Battery Saving modes). Yes, the Lenovo Yoga Book 9 (13IRU8) is definitely tuned for comfort over performance. Battery Now, we conduct the battery tests with the Windows Better performance setting turned on, screen brightness adjusted to 120 nits and all other apps turned off except for the one we are testing the notebook with. This device has an 80Wh battery pack. The capacity is enough for 16 hours and 40 minutes of Web browsing, or 14 hours and 17 minutes of video playback. Wow! Upgrade options The memory is soldered to the mainboard and all laptops are configured with 16GB of LPDDR5x-6400 in dual-channel mode. For storage, there is just one M.2 slot compatible with Gen 4 (2242) SSDs. Lenovo Vantage The Lenovo Vantage application is a useful tool that is giving you more control over your device. The app contains options such as different power presets, five audio modes, an Eye Care mode, and Intelligent sensing is handy when you want to login in or lock the device without touching it. The super-resolution feature will enhance the resolution of low-res videos but it also has a negative impact on the battery life. Intelligent gestures can be used when you want to control the audio volume and the screen brightness by scrolling your fingers up and down on the display. OLED Panel Settings can be handy when you want to increase the battery life. You can tune settings such as Taskbar Dimmer, Background Dimmer, and Display Dimmer. Smart Center The Smart Center is the main hub of useful info regarding the Lenovo Yoga Book. With the aid of short text and pictures of possible working modes with the laptop, it's easier to understand how to get the most out of this small unique-looking device. Let's have a quick look at all possible scenarios. Work If you are going to use this laptop in the office, below you can see some interesting ideas about the most comfortable way to utilize the machine depending on the current situation like making video calls and taking notes at the same time or you can enjoy the notebook in a standard clamshell shape by using the second screen as virtual keyboard and touchpad. Study If you are a student, you can connect the external keyboard in order to read the info on one screen and write notes on the other. Or maybe you can watch a video on the main panel and take notes on the other with the stylus. Mobility The laptop will automatically switch to tablet mode when you flip it to 360 degrees. If you tap with 8 fingers on the lower part of the second screen, the virtual keyboard will be immediately "summoned". Collaborations In the Collaborations tab, you can see more details about how to use the notebook more effectively in a tent mode for presentations. Entertainment Well, the entertainment tab is our favorite. There are three games that are specially customized to work effectively with the two screens of this laptop - Asphalt 9, Modern Combat 5, and Dungeon Hunter 5. We tried Asphalt 9 (check the screenshots below) and playing this game in a dual-screen way is so much fun. The main panel is utilized for gameplay while the second one is used to visualize the map and the on-screen controls. All three titles can be downloaded via the MS Store. Here are some screenshots while using the Dual-Screen Gaming option. Features The Features tab is very important - basically, it's a visual tutorial that can teach you to how to use the device properly by taking advantage of all its features. All the options are divided into six tabs. There, you can find quick visualized hints for every possible option. For each of them, there is a "Settings" or "Try Now" button so you can start experimenting on your own. You can have a look at all tabs and their content in the screenshots below which are divided into different sections. Windows Management Virtual Keyboard Quick Access Smart Note Smart Reader Dual-Screen Gaming Dual-screen settings Here are the settings for the Dual-Screen mode. Storage performance Our laptop is configured with a 1TB SKHynix_HFS001TEJ4X112 NVMe. Below you can see some benchmarks of this SSD. Its temperatures under load are very good. Verdict No matter what is your profession and what you like to do in your free time, the Lenovo Yoga Book 9 (13IRU8) is a 2-in-1 laptop that can be suitable for most people because it's a universal gadget thanks to the two displays. The machine has many tricks up in its sleeve due to the display duo. You can use the device as a normal clamshell machine without any of the provided accessories because, with some finger taps on the second screen, you can start using a virtual keyboard and touchpad. If you prefer a more classic experience (as a consequence of the absence of key travel of the virtual board), just place the provided Bluetooth keyboard above the lower panel and it'll magnetically attach to it. Keep in mind that some models have also an optional Bluetooth mouse in the package. The included folio stand can be used to work with the laptop in a dual portrait way or in a dual landscape manner for enhanced productivity. This allows you to drag apps and windows from one screen to another or to expand the content on both displays. The notebook can lay fully flat on your desk, or you can use it in a tent mode where two people can separately enjoy audio and video content because of the two screens. This is all possible as a result of the great 360-degree hinge that is also super stable and smooth. Oh, yes, and it houses two quality speakers hidden beneath a metal cover with many small holes. There is a pair of woofers on the bottom plate. The build quality is great, the lid is stable and the base is solid. The all-aluminum build feels superb to the touch with the anodized finish. The design is mature and classy, with minimal branding. Just don't forget to unglue all the stickers placed on the bottom for an even cleaner look. The comfort during heavy loads is surprisingly good, the fan isn't loud (the sound of it is soft), and you can feel a bit of the heat in the upper part of the second screen but nothing serious. During normal usage, the fan is also quiet and it's hard to be heard when the machine is in an idle state. The performance of the machine is snappy, the Core i7-1355U can maintain decent clocks and temperatures during any kind of load, and its 10 cores and 12 threads are enough for a butter-smooth experience. The display duo (Samsung ATNA33AA02-0 and ATNA33AA06-0) is simply staggering when it comes to contrast ratio (which is infinite because of the OLED tech) and color coverage (100% sRGB and DCI-P3). This makes the panels compatible for color-sensitive work and content creation. Out Design and Gaming, profile is enhancing the dE color accuracy from 2.8 to 1.7 value which can be also taken into consideration by the professionals and the artists. The pixels' response time is just 5 ms and since the iGPU can handle CS:GO on Max settings with 88 FPS, you can also play some light and casual games after work. Speaking of gaming, the dual-screen gaming mode is something special. Both panels can be used to play optimized titles (Asphalt 9, Modern Combat 5, and Dungeon Hunter 5). We had some fun with Asphalt 9 and it is such a joy to utilize the second screen for on-screen controls and map visualization, while you can enjoy the gameplay on the main panel. If Lenovo continues to work closely with other developers in order to optimize more titles for Lenovo Yoga Book 9 (13IRU8), this can be a deal breaker for many of us. Thanks to the Lenovo Vantage app you can choose between different performance presets, many Audio modes, you can set Eye Care mode, etc. The Lenovo Yoga 9 User Center is the main event when it comes to software tweaks. This is a visual tutorial that can show you all the possible tricks and features of this machine. Expectedly, the upgrade options of this machine are its only downside (as well as the high price). The memory is soldered to the motherboard, but at least all machines are configured with fast 16 LPDDR5x-6400MHz memory working in a dual-channel mode. For storage, there is just one M.2 slot compatible with Gen 4 SSDs. The laptop is hard to service (just like some Microsoft Surface machines) because of the dual-screen design and the lack of visible screws. The battery life is great - 16 hours and 40 minutes of Web browsing, or 14 hours and 17 minutes of video playback! The Lenovo Yoga Book 9 (13IRU8) is a 2-in-1 laptop that features two great 13.3 OLED touchscreen panels. The devices can be transformed into many different shapes thanks to its 360-degree hinge and the good amount of accessories in the box. The snappy performance and the good comfort under load are something that was a pleasant shock to us. When you add great build quality to the mix, this device is one of the best laptops that can be used for productivity tasks, entertainment, or for almost everything you want. After testing this notebook for a few days, we can conclude that it's something more than just an interesting machine with two displays. Due to its multipurpose abilities, the Lenovo Yoga Book 9 (13IRU8) is Optimus Prime among the other transformers on the market. You can check the prices and configurations in our Specs System: https://laptopmedia.com/series/lenovo-yoga-book-9-13-2023/