14 inch touch convertible tablet, Core i7-1065G7, 16GB, 512GB
Ten years ago, Lenovo innovated by launching the first touch-sensitive laptop computer with rotary hinge, Yoga. Since then, the brand has been constantly improving its laptop convertible tablet whose quintessence is now embodied by the Yoga C940. A 14-inch ultrabook that is among the first to ship the latest Intel Ice Lake processors engraved in 10 nm.
Specifications of the Lenovo Yoga C940-14IIL (81Q9000YFR)
| Screen (s) | 14 “Full HD IPS Touch Multitouch (1920×1080, brilliant) |
| Processor | Intel Core i7-1065G7 Ice Lake (1.3GHz, 4 cores) |
| Installed RAM | 16 GB (soldered) LPDDR4x 3733MHz |
| Graphic card | Intel Iris G7 Graphics |
| Storage | Samsung NVMe 512GB PCIe SSD |
| Connectors | 1 USB 3.1 gen 2 2 USB 3.1 gen 2 Thunderbolt 3 3.5 jack (microphone / headphone) |
| Network | Wi-Fi AX (2×2), Bluetooth 5 |
| Backlit Keyboard | Yes |
| Numeric keypad | – |
| Windows Hello | Fingerprint reader |
| Audio system | 4 Dolby Atmos speakers |
| Operating system | Windows 10 64-bit |
| Announced Autonomy / Battery | 17 hours / Li-Ion 36Whr |
| Dimensions / Weight | 320x216x16 mm / 1.4 Kg |
Chassis / Design of the Lenovo Yoga C940-14
Sobriety and elegance are the two adjectives that best illustrate Yoga when discovered at the exit of the box. The champagne color (Mica) of our model is very aesthetically successful. Sometimes brassy, sometimes gray depending on the light, this shade is not very sensitive to fingerprints, even after several days of use.
The finish is impeccable, both inside and out. Perfect adjustments. The Yoga C940 perfectly embodies the vision we have of a premium ultrabook.
On the scalability side, the observation is less encouraging. RAM is soldered, the user can only replace the SSD. The access is also rather delicate, screws being hidden under the rubber pads.
Connectivity / Ports of the Lenovo Yoga C940-14
Ultrabook often rhymes with minimalist connectivity. With a USB-A 3.1 gen 2 port and two USB-C Thunderbolt 3, Yoga does not fare so badly. However, one of the USB-C ports must be used for mains power. It is still possible to use a USB-C hub if needed.
Lenovo Yoga C940-14 audio system
The sound is still today the weak point of laptops, even more when it comes to fine models. Yoga does not escape but Lenovo has the merit of proposing an interesting solution. If the two speakers below the chassis are conventional, the hinge of the screen also includes. In “laptop” position, virtualization and rendering are improved. In tent or tablet position, the benefit is less obvious.
The sound volume impresses for a computer of this size. Unfortunately, the sound saturates fairly quickly beyond 50% of volume. The bass is also too present. The Dolby Atmos utility does a good job, however, for both music and film immersion.
Lenovo Yoga C940-14 Keyboard / Touchpad
Because of its thin chassis and especially the possibility of using it as a tablet, Yoga must have a flat keyboard. The rather dry shot will not be unanimous with its race of 1 mm. However, the noise remains discreet, the dimensions of the keys are in the mean (15.8 x 15 mm) as the spacing (3.3 mm). In fine, without being the most comfortable keyboard on the market, it remains pleasant and effective to use.
The backlight offers two adjustment intensities. Due to its white color combined with the gray lettering and champagne touches, readability is difficult during the day. It is therefore best to disable it.
The touchpad is responsive and accurate thanks to its glass surface. Its dimensions (105 x 70 mm) are in the average. A few extra square centimeters, however, would not have been a refusal to facilitate the execution of multi-touch gestures.
Lenovo Yoga C940-14 Screen
The Yoga C940-14 is marketed with two different screens. A UHD 4K HD400 panel that will offer a feeling of increased sharpness but at the cost of less autonomy. Lenovo also offers a more classic Full HD screen like the model we tested. A screen (AUO B140HAN05 – LEN8894) a little disappointing for a model of this range, especially on the side of the maximum brightness with 335 cd / m². The sRGB space is 95% covered, with an average DeltaE of 0.28 after characterization (for a maximum of 0.89). The contrast ratio is 1557: 1.
Yoga is a model convertible tablet with its 360 ° hinge, it obviously has a touch screen. It is thus possible to alternate between a conventional laptop, a practical tent mode to watch a movie or a series and the tablet mode where the keyboard folds under the screen. Without equaling the comfort of a tablet like the Surface Pro 7, especially because of the weight that although low is weighing quite quickly at arm’s length and the sensation not always pleasant to touch the keyboard, a convertible as the Yoga opens of new Horizons. The latest updates of Windows 10 have improved the use without keyboard or mouse but some software is tricky to handle effectively with the finger or the stylus. Compact and fine, the latter does not does not offer the best grip. But this allows him to stay in a location on the right rear of the chassis. Convenient to have it always at hand without risk of misplacing it.
Despite the borderless screen, the webcam is in its usual location. Its definition of 0.9 MP is classic for a laptop. Ditto for quality, average with a lack of sharpness and a very present noise when the brightness declines. Another grievance, it is not compatible with Windows Hello, yet convenient to unlock its Windows session. To do this on Yoga, it will be necessary to use the traditional password or to use the reader of fingerprints present under the keyboard.
Lenovo Yoga C940-14 Performance
The Lenovo Yoga C940 is based around Core i5 and Core i7 low power configurations. These are the latest Ice Lake processors.
To summarize in a nutshell, the Yoga C940 is similar to the ultrabooks homologous with a configuration adapted to a versatile use punctuated by some more demanding tasks even a few (small) games thanks to its new chip Iris G7 Graphics.
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