ASUS Chromebook 14 (CX1405) vs Lenovo IdeaPad 3 Chromebook
Both are good choices with different strengths. The ASUS Chromebook 14 gets updates for longer, is more compact and is newer, while the Lenovo IdeaPad 3 Chromebook has more memory, has more storage and has a bigger screen.
We earn a commission from qualifying Amazon purchases made through our links, at no extra cost to you. This never affects our specs. How we make money.
Key differences
- Updates ASUS Chromebook 14 wins
The ASUS Chromebook 14 gets Chromebook updates until June 2035, about 6 years longer than the Lenovo IdeaPad 3 Chromebook (June 2029).
- Memory Lenovo IdeaPad 3 Chromebook wins
The Lenovo IdeaPad 3 Chromebook has 8 GB of memory against 4 GB, so it has more room for big projects and heavy multitasking.
- Storage Lenovo IdeaPad 3 Chromebook wins
The Lenovo IdeaPad 3 Chromebook has twice the storage: 128 GB against 64 GB.
- Screen size Depends on you
The Lenovo IdeaPad 3 Chromebook has the bigger screen (15.6" against 14"), while the ASUS Chromebook 14 is more compact.
- Age ASUS Chromebook 14 wins
The ASUS Chromebook 14 is the newer model (2025 against 2021).
Which one should you choose?
Choose the ASUS Chromebook 14 if…
- You'll keep it for years: Google updates it until June 2035.
- You want something compact for small bags and train tables: it has a 14-inch screen.
- You want a more recent design: it came out in 2025.
Choose the Lenovo IdeaPad 3 Chromebook if…
- You keep lots of tabs and apps open: 8 GB of memory gives it more room than 4 GB.
- You store lots of photos, videos or games: it has 128 GB of storage.
- You want more room to work: its 15.6-inch screen fits two windows side by side.
Full spec comparison
Add more laptopsThe ASUS Chromebook 14 leads on software and updates, while the Lenovo IdeaPad 3 Chromebook leads on performance. Highlighted values mark the better spec in each row, and you can hide the rows where they match.
Performance
The Lenovo IdeaPad 3 Chromebook is ahead on performance.
It has more memory and has more storage, and the ASUS Chromebook 14 doesn't beat it on anything here.
| Spec | ASUS Chromebook 14 (CX1405) | Lenovo IdeaPad 3 Chromebook |
|---|---|---|
| Processor | Celeron N50 | Intel Pentium Silver N6000 |
| Graphics | Intel Graphics | Intel UHD Graphics |
| Memory (RAM) | 4 GB | 8 GB |
| Memory type | LPDDR4X | LPDDR4X-2933 |
| Maximum memory | 4 GB | 8 GB |
| Memory upgrades | Soldered (not upgradeable) | Soldered (not upgradeable) |
| Storage | 64 GB | 128 GB |
| Storage type | eMMC | eMMC |
| Storage interface | eMMC | eMMC 5.1 |
| Storage slots | — | 0 |
Screen
On the screen, it comes down to what you need.
The Lenovo IdeaPad 3 Chromebook has the bigger screen (15.6" against 14"), while the ASUS Chromebook 14 is more compact. The ASUS Chromebook 14 is more compact, while the Lenovo IdeaPad 3 Chromebook has a bigger screen.
| Spec | ASUS Chromebook 14 (CX1405) | Lenovo IdeaPad 3 Chromebook |
|---|---|---|
| Screen size | 14" | 15.6" |
| Resolution | Full HD (1920 x 1080) | Full HD (1920 x 1080) |
| Aspect ratio | 16:9 | 16:9 |
| Panel | TN | TN |
| Refresh rate | 60 Hz | 60 Hz |
| Variable refresh (VRR) | No | — |
| Brightness | 250 nits | 220 nits |
| Colour range | 45% NTSC | — |
| HDR | None | None |
| Finish | Matte | Matte |
| Touchscreen | No | No |
Battery and size
Each laptop has its strengths on battery and weight.
The ASUS Chromebook 14 is a little lighter, while the Lenovo IdeaPad 3 Chromebook has a bigger battery.
| Spec | ASUS Chromebook 14 (CX1405) | Lenovo IdeaPad 3 Chromebook |
|---|---|---|
| Battery life (maker claim) | — | Up to 10 hours |
| Battery capacity | 42 Wh | 47 Wh |
| Charger | 45 W | 45 W |
| Charges via | USB-C | USB-C |
| Fast charging | — | None |
| Weight | 1.39 kg | 1.58 kg |
| Dimensions | 324.5 x 214.4 x 17.0-19.9 mm | 362 x 243 x 18.95 mm |
| Materials | 30% post-consumer recycled plastic in cover or inner frame | PC-ABS top and bottom |
| Durability | MIL-STD-810H | — |
| Hinge | 180-degree lay-flat | — |
| Colour | Fabric Blue | Arctic Grey |
| Colours available | Quiet Blue, Pure Grey, Fabric Blue | Arctic Grey, Abyss Blue |
Ports and wireless
The Lenovo IdeaPad 3 Chromebook is ahead on ports and wireless.
It has an SD card reader, and the ASUS Chromebook 14 doesn't beat it on anything here.
| Spec | ASUS Chromebook 14 (CX1405) | Lenovo IdeaPad 3 Chromebook |
|---|---|---|
| Ports | 1x USB-C 3.2 Gen 1 (charging, display), 1x USB-A 3.2 Gen 1, 1x HDMI 1.4, 1x 3.5 mm combo audio | 2x USB-A 3.2 Gen 1, 1x USB-C 3.2 Gen 1 (Power Delivery 3.0, DisplayPort 1.4), 1x HDMI 1.4, 1x 3.5 mm audio, 1x microSD |
| Thunderbolt / USB4 | None | None |
| External displays (max) | — | 2 |
| Card reader | None | microSD |
| Ethernet | None | None |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 6 |
| Bluetooth | Bluetooth 5.4 | Bluetooth 5.2 |
| Mobile data | None | None |
Features
Both have much the same extras.
From the keyboard to the webcam and login, there is little between them.
| Spec | ASUS Chromebook 14 (CX1405) | Lenovo IdeaPad 3 Chromebook |
|---|---|---|
| Webcam | 720p | 720p |
| Webcam privacy | physical shutter | physical shutter |
| Backlit keyboard | No | No |
| Keyboard | spill-resistant chiclet keyboard, 1.35 mm key travel | UK English, non-backlit, numeric keypad |
| Number pad | — | Yes |
| Touchpad | touchpad | Mylar, 70 x 105 mm |
| Speakers | built-in speakers | 2x 2 W stereo |
| Microphones | built-in microphone | dual-array |
| Pen | No | No |
| Security | Google Titan C, Kensington Nano Security Slot | Google Security Chip H1, Kensington Nano Security Slot |
Software and model
The ASUS Chromebook 14 is ahead on software and updates.
It gets updates for longer and is newer, and the Lenovo IdeaPad 3 Chromebook doesn't beat it on anything here.
| Spec | ASUS Chromebook 14 (CX1405) | Lenovo IdeaPad 3 Chromebook |
|---|---|---|
| Operating system | ChromeOS | ChromeOS |
| Updates until | June 2035 | June 2029 |
| Model number | CX1405CTA | 82N40054UK |
| Released | 2025 | 2021 |