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Lenovo YOGA Book [YB1-X91F]

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Display:10.1 ", 1920x1200 (16:10)
CPU:Atom, X5-Z8550, 1.44 GHz
Graphics card:HD Graphics 400
RAM:4 GB
Storage:eMMC
Laptop weight:0.69 kg
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Configurations Lenovo YOGA Book 2
Specifications
Lenovo YOGA Book [YB1-X91F]
Colour
Typetransformer 360°
Screen
Screen size10.1 "
Screen typeIPS
Surface treatmentglossy
Screen resolution1920x1200 (16:10)
Refresh rate60 Hz
Brightness400 nt
Light sensor
Touch
Gorilla Glassv3
CPU
SeriesAtom
ModelX5-Z8550
Processor cores4
CPU speed1.44 GHz
TurboBoost / TurboCore frequency2.4 GHz
Test Passmark CPU Mark1926 points
RAM
RAM4 GB
RAM typeDDR3 / LPDDR3 /
RAM memory frequency1600 MHz
Amount of RAM slotsbuilt-in
Graphics card
Graphics card typeintegrated
Graphics card seriesIntel HD Graphics
Graphics card modelHD Graphics 400
Storage
Drive typeeMMC
Connections
Connection portsmicroHDMI
Card reader / microSD /
Alternate Mode
Multimedia
Webcam1920x1080 (Full HD) / + 8 Mp rear /
Camera shutter
Speakers2 pcs / Dolby Atmos + 2 microphones /
Keyboard
Backlightin absent
Key designtouch screen / touchpad with Wacom technology /
Num block
Input devicetouchpad
Battery
Battery capacity8500 mAh
Battery capacity33 W*h
Operating time15 h
Power Delivery via USB-C
Fast charge
General
Preinstalled OSWin 10 Pro
In boxstylus / real Pen with refills included /
Materialmagnesium alloy / + aluminium /
Dimensions (WxDxT)256.6x170.8x9.6 mm
Weight0.69 kg
Added to E-CatalogDecember 2016
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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Additional features laptop Lenovo YB1-X91F:
  • Unique Halo Keyboard
  • Sensors: vibration motor, accelerometer, Hall sensor
  • Notebook A5 with magnetic fastening
Prices Lenovo YOGA Book [YB1-X91F]
This model is currently not available for sale.
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Decided to restore it, well we like it!!
28 September 2020 
Great machine. Bought it for long trips. 12 hours on the plane is fine: watched, slept, watched again. On vacation, if needed, we worked, watched movies, etc. But: ATTENTION!!!!! the glass keyboard requires careful handling. Repair costs around 200 EUR. It cracks if it falls on the floor. Just received it. Dropping it is expensive.
Great item for vacation and business trips!!! Lightweight, convenient, good display, and an awesome keyboard.
Heavy and expensive repairs, if anything...
Alekseyuse Lenovo YOGA Book more than year
A futuristic, but not entirely convenient laptop
19 August 2017 
I'm a copywriter, and I'm constantly loaded with work. However, you can't always sit in the office or at your home PC. So that I can work in the park, in nature, or at the dacha, I wanted to get a compact laptop, but during the selection process I saw this device and fell in love with it from a distance. Weighing only 700 grams, made of metal, high-quality plastic, and glass – the first impression was extremely pleasant.
Perhaps the most striking advantage of this device is its futuristic design. The two halves of the laptop are connected by a complex metallic and mechanical hinge. It operates with a bit of resistance, but because of this, you can open the halves to any desired angle, and it's great. The screen with FullHD resolution looks like a glossy magazine, only the colors are even more vibrant. The virtual backlit keyboard and stylus drawing mode are absolutely mind-blowing. However, such unusual solutions are not always practical. The performance is decent, at least for tablet computers, it’s a respectable mid-level.
In bright and intense lighting, the screen reflects harshly. But that's not the worst part. I've been getting used to this unusual keyboard for the second month now, but I can't say that it's become any more comfortable for me. I occasionally give up and connect a Bluetooth keyboard at home, but I can't carry it around with me. The main problem is the lack of tactile feedback, meaning there's no sensation of the key's physical movement that I've gotten used to over the decades. Yes, there's a vibration effect that confirms the press, and there's also an audio confirmation, but it's just not the same. Overall, the device's keyboard is quite debatable. There's no full-size USB port. It also has a long battery charging time, taking almost 4 hours. That's a lot, and interrupting the charging isn't a great idea from a battery health perspective. So, you just have to wait.
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