In depth comparison and review of ASUS Chromebook Flip CX3 (CX3400FMA) 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 ASUS Chromebook Flip CX3 (CX3400FMA) based on its technical characteristics, features, user experience, expert reviews and price level.
versatile 360-degree hinge
lightweight design
efficient Chrome OS
fast boot times
affordable price
limited app compatibility
mediocre display quality
modest storage capacity
average processor performance
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 | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Product Type | Chromebook - flip design | Chromebook |
|---|---|---|
| Dimensions (WxDxH) | 32.5 cm x 21.98 cm x 1.99 cm | 32.54 cm x 21.7 cm x 1.983 cm |
| Weight | 1.65 kg | 1.56 kg |
| Case Material | - | Polycarbonate ABS (bottom), polycarbonate ABS (top) |
| Colour | AI blue | Abyss blue |
| DISPLAY | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Screen Size (Type) | 14" | 14" - IPS |
|---|---|---|
| Touchscreen | Yes | - |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full 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 | 45% NTSC |
| Features | Glossy, WideView, 80% screen-to-body ratio | Anti-glare, 170° viewing angle |
| PROCESSOR | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| CPU | Intel Core i3 (11th Gen) 1110G4 / 2.5 GHz | Intel Core i5 (12th Gen) 1235U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 3.9 GHz | 4.4 GHz |
| Number of Cores | Dual-Core | 10-core |
| Cache | 6 MB | 12 MB |
| Features | Intel Turbo Boost Technology 2.0, Intel Smart Cache | Integrated memory controller |
| MEMORY | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| RAM | 8 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | LPDDR4X SDRAM | LPDDR4X SDRAM |
| Speed | - | 4266 MHz |
| Rated Speed | - | 4266 MHz |
| STORAGE | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe) | 128 GB eMMC - eMMC 5.1 |
|---|
| AUDIO & VIDEO | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel Iris Xe Graphics |
|---|---|---|
| Max Monitors Supported | - | 3 external monitor(s) |
| Camera | Yes - 720p | Yes - 1080p |
| Resolution | 5 Megapixel | - |
| Camera Features | Privacy shutter, World Facing Camera | Privacy shutter, fixed focus |
| Sound | Stereo speakers, microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC5682I |
| Compliant Standards | - | High Definition Audio, Waves MaxxAudio |
| Audio Features | Smart Amp | - |
| COMMUNICATIONS | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | - | Intel Wi-Fi 6E AX 211 - M.2 Card |
| Features | Dual stream (2x2) | Dual stream (2x2) |
| BATTERY | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Technology | 3-cell Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 50 Wh | 57 Wh |
| Battery Life | - | Up to 11 hours |
| AC ADAPTER | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 15 V, 3 A | 65 Watt |
| INPUT | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Chiclet keyboard, 1.5mm travel distance | Spill-resistant, multi-touch touchpad, Chrome keyboard |
| CONNECTIONS & EXPANSIONS | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Interfaces | Headphone/microphone combo jack 2 x USB 3.2 Gen 1 2 x USB-C 3.2 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) |
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 | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Operating System (OS) | Google Chrome OS | Google Chrome OS |
|---|
| MISCELLANEOUS | ASUS Chromebook Flip CX3 (CX3400FMA) | Lenovo ThinkPad C14 Chromebook (21C9) |
|---|
| Included Accessories | USB-C power adapter | USB-C slim power adapter |
|---|---|---|
| Security | Titan-C Security Chip | Google Security Chip H1 |
| Security Slot Type | - | Kensington nano security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | ErgoLift, MIL-STD-810H tested | RapidCharge, MIL-STD-810H tested |
| Compliant Standards | - | RoHS, Energy-Related Products (ErP) Lot 3 |
| ENERGY STAR Certified | Yes | - |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 5 °C |
| Humidity Range Operating | - | 8 - 95% |
| Manufacturer Warranty | - | Limited warranty - 1 year - pick-up and return |
| Model Number | E10009 | - |
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