In depth comparison and review of Acer Chromebook 311 (CB311-9H) and Lenovo ThinkPad C14 Chromebook (21C9). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
Advantages and disadvantages of Acer Chromebook 311 (CB311-9H) based on its technical characteristics, features, user experience, expert reviews and price level.
lightweight and portable
affordable price point
long battery life
solid build quality
efficient Chrome OS
limited storage capacity
mediocre display quality
restricted app compatibility
basic performance level
Advantages and disadvantages of Lenovo ThinkPad C14 Chromebook (21C9) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
efficient performance
excellent keyboard feel
good battery life
affordable price
mediocre display resolution
limited storage capacity
no high-end GPU
fewer ports available
| DESIGN AND DIMENSIONS | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Product Type | Chromebook | Chromebook |
|---|---|---|
| Dimensions (WxDxH) | 29.6 cm x 19.9 cm x 1.815 cm | 32.54 cm x 21.7 cm x 1.983 cm |
| Weight | 1.1 kg | 1.56 kg |
| Case Material | - | Polycarbonate ABS (bottom), polycarbonate ABS (top) |
| Colour | Pure silver | Abyss blue |
| DISPLAY | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Screen Size (Type) | 11.6" - IPS | 14" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1366 x 768 (HD) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 250 cd/m² | 250 cd/m² |
| Colour Gamut | - | 45% NTSC |
| Features | Ultra Slim Design, anti-glare, 25 ms response rate | Anti-glare, 170° viewing angle |
| PROCESSOR | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| CPU | Intel Celeron N4000 / 1.1 GHz | Intel Core i5 (12th Gen) 1235U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 2.6 GHz | 4.4 GHz |
| Number of Cores | Dual-Core | 10-core |
| Cache | 4 MB | 12 MB |
| 64-bit Computing | Yes | - |
| Features | - | Integrated memory controller |
| MEMORY | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| RAM | 4 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | LPDDR4 SDRAM | LPDDR4X SDRAM |
| Speed | - | 4266 MHz |
| Rated Speed | - | 4266 MHz |
| STORAGE | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Main Storage Size (HDD/SSD) | 32 GB eMMC - Kingston | 128 GB eMMC - eMMC 5.1 |
|---|
| AUDIO & VIDEO | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 600 | Intel Iris Xe Graphics |
|---|---|---|
| Memory Allocation Technology | Shared Video Memory (UMA) | - |
| Max Monitors Supported | - | 3 external monitor(s) |
| Camera | Yes - HD | Yes - 1080p |
| Camera Features | HDR (High Dynamic Range), 88° view | Privacy shutter, fixed focus |
| Sound | Stereo speakers, microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC5682I |
| Compliant Standards | - | High Definition Audio, Waves MaxxAudio |
| COMMUNICATIONS | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Wireless | 802.11a/b/g/n/ac Wave 2, Bluetooth 5.0 | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | Intel Wireless-AC 9560 - M.2 2230 | Intel Wi-Fi 6E AX 211 - M.2 Card |
| Features | - | Dual stream (2x2) |
| BATTERY | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Technology | Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 38 Wh | 57 Wh |
| Battery Life | Up to 10 hours | Up to 11 hours |
| AC ADAPTER | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 5 / 9 / 12 / 15 / 20 V | 65 Watt |
| INPUT | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | - | Yes |
| Features | - | Spill-resistant, multi-touch touchpad, Chrome keyboard |
| CONNECTIONS & EXPANSIONS | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Interfaces | 2 x USB 3.1 2 x USB-C 3.1 Gen 1 (DC-In combo) Headphone/microphone combo jack |
2 x USB 3.2 Gen 2 2 x Thunderbolt 4 (supports DisplayPort 1.4) (Power Delivery 3.0) HDMI Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | Yes (microSD) | Yes (microSD) |
| SOFTWARE | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Operating System (OS) | Google Chrome OS | Google Chrome OS |
|---|
| MISCELLANEOUS | Acer Chromebook 311 (CB311-9H) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Included Accessories | Power adapter | USB-C slim power adapter |
|---|---|---|
| Security | - | Google Security Chip H1 |
| Security Slot Type | Kensington security slot | Kensington nano security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | - | RapidCharge, MIL-STD-810H tested |
| Compliant Standards | - | RoHS, Energy-Related Products (ErP) Lot 3 |
| TCO Certified | TCO Certified Notebooks 8 | - |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 5 °C |
| Humidity Range Operating | - | 8 - 95% |
| Manufacturer Warranty | Limited warranty - 1 year - carry-in International travellers warranty - 1 year |
Limited warranty - 1 year - pick-up and return |
| Model Number | C0VS | - |
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