Lenovo IdeaPad Slim 3 Chromebook vs ASUS Chromebook 14 (CX1405)
The ASUS Chromebook 14 has the edge: it gets updates for longer, is newer and has HDMI. The Lenovo IdeaPad Slim 3 Chromebook still lasts longer on a charge and has an SD card reader, so it's worth a look if that matters more to you.
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Key differences
- Updates ASUS Chromebook 14 wins
The ASUS Chromebook 14 gets Chromebook updates until June 2035, about 2 years longer than the Lenovo IdeaPad Slim 3 Chromebook (June 2033).
- Battery life Lenovo IdeaPad Slim 3 Chromebook wins
The Lenovo IdeaPad Slim 3 Chromebook should last longer on a charge: it has a 47 Wh battery against 42 Wh.
- Age ASUS Chromebook 14 wins
The ASUS Chromebook 14 is the newer model (2025 against 2023).
- Ports Depends on you
Only the Lenovo IdeaPad Slim 3 Chromebook has an SD card reader, while only the ASUS Chromebook 14 has HDMI.
Which one should you choose?
Choose the Lenovo IdeaPad Slim 3 Chromebook if…
- You work away from a plug: it should last longer on a charge (its maker claims up to 13.5 hours).
- You plug things in: it has an SD card reader (for camera cards).
- You carry your laptop a lot: it's the lighter of the two at 1.3 kg.
Choose the ASUS Chromebook 14 if…
- You'll keep it for years: Google updates it until June 2035.
- You want a more recent design: it came out in 2025.
- You plug things in: it has HDMI (for TVs and monitors).
Full spec comparison
Add more laptopsThe Lenovo IdeaPad Slim 3 Chromebook leads on battery and weight, while the ASUS Chromebook 14 leads on software and updates. Highlighted values mark the better spec in each row, and you can hide the rows where they match.
Performance
Both laptops are very close on performance.
Their processors are in the same class: both are built for browsing, email and documents, and both have 4 GB of memory.
| Spec | Lenovo IdeaPad Slim 3 Chromebook | ASUS Chromebook 14 (CX1405) |
|---|---|---|
| Processor | MediaTek Kompanio 520 | Celeron N50 |
| Graphics | Arm Mali-G52 2EE MC2 | Intel Graphics |
| Memory (RAM) | 4 GB | 4 GB |
| Memory type | LPDDR4X-3733 | LPDDR4X |
| Maximum memory | 4 GB | 4 GB |
| Memory upgrades | Soldered (not upgradeable) | Soldered (not upgradeable) |
| Storage | 64 GB | 64 GB |
| Storage type | eMMC | eMMC |
| Storage interface | eMMC 5.1 | eMMC |
| Storage slots | 0 | — |
Screen
Both screens are closely matched.
Size, sharpness and smoothness are near enough the same, so neither has a real edge to look at.
| Spec | Lenovo IdeaPad Slim 3 Chromebook | ASUS Chromebook 14 (CX1405) |
|---|---|---|
| Screen size | 14" | 14" |
| 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 | No |
| Brightness | 250 nits | 250 nits |
| Colour range | 45% NTSC | 45% NTSC |
| HDR | None | None |
| Finish | Matte | Matte |
| Touchscreen | No | No |
Battery and size
The Lenovo IdeaPad Slim 3 Chromebook is ahead on battery and weight.
It lasts longer on a charge and is a little lighter, and the ASUS Chromebook 14 doesn't beat it on anything here.
| Spec | Lenovo IdeaPad Slim 3 Chromebook | ASUS Chromebook 14 (CX1405) |
|---|---|---|
| Battery life (maker claim) | Up to 13.5 hours | — |
| Battery capacity | 47 Wh | 42 Wh |
| Charger | 45 W | 45 W |
| Charges via | USB-C | USB-C |
| Weight | 1.3 kg | 1.39 kg |
| Dimensions | 325.9 x 221.8 x 18.6 mm | 324.5 x 214.4 x 17.0-19.9 mm |
| Materials | PC-ABS + 15% talc top and bottom | 30% post-consumer recycled plastic in cover or inner frame |
| Durability | — | MIL-STD-810H |
| Hinge | — | 180-degree lay-flat |
| Colour | Abyss Blue | Fabric Blue |
| Colours available | Abyss Blue, Cloud Grey | Quiet Blue, Pure Grey, Fabric Blue |
Ports and wireless
On ports and wireless, it comes down to what you need.
The Lenovo IdeaPad Slim 3 Chromebook has an SD card reader, while the ASUS Chromebook 14 has HDMI.
| Spec | Lenovo IdeaPad Slim 3 Chromebook | ASUS Chromebook 14 (CX1405) |
|---|---|---|
| Ports | 1x USB-A 3.2 Gen 1, 1x USB-C 3.2 Gen 1 (charging, data, DisplayPort 1.1a), 1x 3.5 mm headphone/microphone combo, 1x microSD | 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 |
| Thunderbolt / USB4 | None | None |
| External displays (max) | 1 | — |
| Card reader | microSD | None |
| Ethernet | None | None |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 6 |
| Bluetooth | Bluetooth 5.3 | Bluetooth 5.4 |
| Mobile data | None | None |
Features
The Lenovo IdeaPad Slim 3 Chromebook is ahead on extras.
It has a sharper webcam, and the ASUS Chromebook 14 doesn't beat it on anything here.
| Spec | Lenovo IdeaPad Slim 3 Chromebook | ASUS Chromebook 14 (CX1405) |
|---|---|---|
| Webcam | 1080p | 720p |
| Webcam privacy | physical shutter | physical shutter |
| Backlit keyboard | No | No |
| Keyboard | 6-row spill-resistant Chrome keyboard | spill-resistant chiclet keyboard, 1.35 mm key travel |
| Number pad | No | — |
| Touchpad | buttonless Mylar multi-touch, 69 x 104 mm | touchpad |
| Speakers | 2x 2 W stereo, Waves MaxxAudio | built-in speakers |
| Microphones | dual-array | built-in microphone |
| Pen | No | No |
| Security | Google Security Chip H1, Kensington Nano Security Slot, camera privacy shutter | Google Titan C, 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 Slim 3 Chromebook doesn't beat it on anything here.
| Spec | Lenovo IdeaPad Slim 3 Chromebook | ASUS Chromebook 14 (CX1405) |
|---|---|---|
| Operating system | ChromeOS | ChromeOS |
| Updates until | June 2033 | June 2035 |
| Model number | 82XJ001AUK | CX1405CTA |
| Released | 2023 | 2025 |