In depth comparison and review of Acer Chromebook Spin 512 (R851TN) 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 Spin 512 (R851TN) based on its technical characteristics, features, user experience, expert reviews and price level.
durable 360-degree hinge
responsive touchscreen display
robust parental controls
efficient Chrome OS
affordable price
limited app compatibility
modest storage capacity
average processor speed
no Windows or MacOS compatibility
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 Spin 512 (R851TN) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Product Type | Chromebook - flip design | Chromebook |
|---|---|---|
| Dimensions (WxDxH) | 29.6 cm x 23.11 cm x 2.03 cm | 32.54 cm x 21.7 cm x 1.983 cm |
| Weight | 1.55 kg | 1.56 kg |
| Case Material | - | Polycarbonate ABS (bottom), polycarbonate ABS (top) |
| Colour | Shale black | Abyss blue |
| DISPLAY | Acer Chromebook Spin 512 (R851TN) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Screen Size (Type) | 12" - IPS | 14" - IPS |
|---|---|---|
| Touchscreen | Yes (multi-touch) | - |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1366 x 912 (HD+) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 3:2 | 16:9 |
| Image Brightness | 235 cd/m² | 250 cd/m² |
| Colour Gamut | 50% NTSC | 45% NTSC |
| Features | CineCrystal, Mercury free, Wide Viewing Angle, 25 ms response rate, Antimicrobial Corning Gorilla Glass | Anti-glare, 170° viewing angle |
| PROCESSOR | Acer Chromebook Spin 512 (R851TN) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| CPU | Intel Pentium Silver N5000 / 1.1 GHz | Intel Core i5 (12th Gen) 1235U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 2.7 GHz | 4.4 GHz |
| Number of Cores | Quad-Core | 10-core |
| Cache | 4 MB | 12 MB |
| 64-bit Computing | Yes | - |
| Features | Intel Burst Technology | Integrated memory controller |
| MEMORY | Acer Chromebook Spin 512 (R851TN) | 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 Spin 512 (R851TN) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Main Storage Size (HDD/SSD) | 64 GB eMMC - SanDisk | 128 GB eMMC - eMMC 5.1 |
|---|
| AUDIO & VIDEO | Acer Chromebook Spin 512 (R851TN) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 605 | Intel Iris Xe Graphics |
|---|---|---|
| Memory Allocation Technology | Shared Video Memory (UMA) | - |
| Max Monitors Supported | - | 3 external monitor(s) |
| Camera | Yes - 3264 x 2448 (rear), 1280 x 720 (front) | Yes - 1080p |
| Resolution | 8 Megapixel (rear), 0.9 Megapixel (front) | - |
| Camera Features | HDR (High Dynamic Range), rear camera with auto focus, 88° view | Privacy shutter, fixed focus |
| Video Resolutions | 720p | - |
| Sound | Stereo speakers, microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC5682I |
| Compliant Standards | High Definition Audio | High Definition Audio, Waves MaxxAudio |
| COMMUNICATIONS | Acer Chromebook Spin 512 (R851TN) | 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 Spin 512 (R851TN) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Technology | 3-cell Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 45 Wh | 57 Wh |
| Battery Life | Up to 11 hours | Up to 11 hours |
| AC ADAPTER | Acer Chromebook Spin 512 (R851TN) | 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 Spin 512 (R851TN) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Type | Keyboard, digitizer, touchpad, digital pen | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | - | Yes |
| Features | Volume control, spill-resistant, Acer FineTip keyboard, moisture-resistant, mechanically anchored keys | Spill-resistant, multi-touch touchpad, Chrome keyboard |
| CONNECTIONS & EXPANSIONS | Acer Chromebook Spin 512 (R851TN) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Interfaces | 2 x USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (charging) 2 x USB 3.1 Gen 1 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, microSDHC, microSDXC) | Yes (microSD) |
| SOFTWARE | Acer Chromebook Spin 512 (R851TN) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Operating System (OS) | Google Chrome OS | Google Chrome OS |
|---|
| MISCELLANEOUS | Acer Chromebook Spin 512 (R851TN) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Included Accessories | Wacom EMR pen, USB-C power adapter | USB-C slim power adapter |
|---|---|---|
| Integrated Options | Gyro sensor | - |
| Security | Trusted Platform Module (TPM) Security Chip | 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 | MU-MIMO technology, robust construction, MIL-STD-810G tested | 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 | P29J | - |
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