Lenovo IdeaPad Duet 3 Chromebook vs ASUS Chromebook CM30 Detachable
The ASUS Chromebook CM30 Detachable is the better laptop on paper: it gets updates for longer, has more memory and has more storage. The Lenovo IdeaPad Duet 3 Chromebook doesn't beat it on any spec that matters.
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Key differences
- Updates ASUS Chromebook CM30 Detachable wins
The ASUS Chromebook CM30 Detachable gets Chromebook updates until June 2033, about 2 years longer than the Lenovo IdeaPad Duet 3 Chromebook (June 2031).
- Memory ASUS Chromebook CM30 Detachable wins
The ASUS Chromebook CM30 Detachable has 8 GB of memory against 4 GB, so it has more room for big projects and heavy multitasking.
- Storage ASUS Chromebook CM30 Detachable wins
The ASUS Chromebook CM30 Detachable has twice the storage: 128 GB against 64 GB.
Which one should you choose?
Choose the Lenovo IdeaPad Duet 3 Chromebook if…
- You want a little more room on screen: it's 10.95 inches.
- You mostly browse, stream and write: its Snapdragon 7c Gen 2 is built for browsing, email and documents.
- You'll carry it around: it weighs just 0.9458 kg.
Choose the ASUS Chromebook CM30 Detachable if…
- You'll keep it for years: Google updates it until June 2033.
- 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.
Full spec comparison
Add more laptopsThe ASUS Chromebook CM30 Detachable leads on software and updates and performance; elsewhere the two are closely matched. Highlighted values mark the better spec in each row, and you can hide the rows where they match.
Performance
The ASUS Chromebook CM30 Detachable is ahead on performance.
It has more memory and has more storage, and the Lenovo IdeaPad Duet 3 Chromebook doesn't beat it on anything here.
| Spec | Lenovo IdeaPad Duet 3 Chromebook | ASUS Chromebook CM30 Detachable |
|---|---|---|
| Processor | Qualcomm Snapdragon 7c Gen 2 | MediaTek Kompanio 520 |
| Graphics | Qualcomm Adreno GPU | ARM Mali-G52 MC2 |
| Memory (RAM) | 4 GB | 8 GB |
| Memory type | LPDDR4x-2133 | LPDDR4X-4266 |
| 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 5.1 (on systemboard) | eMMC |
| Storage slots | 0 | — |
Screen
On the screen, it comes down to what you need.
The Lenovo IdeaPad Duet 3 Chromebook has a slightly bigger screen: 10.95" against 10.5". The Lenovo IdeaPad Duet 3 Chromebook has a slightly bigger screen, and the ASUS Chromebook CM30 Detachable doesn't beat it on anything here.
| Spec | Lenovo IdeaPad Duet 3 Chromebook | ASUS Chromebook CM30 Detachable |
|---|---|---|
| Screen size | 10.95" | 10.5" |
| Resolution | Full HD+ (2000 x 1200) | Full HD+ (1920 x 1200) |
| Aspect ratio | 15:9 | 16:10 |
| Panel | IPS | IPS |
| Refresh rate | 60 Hz | 60 Hz |
| Variable refresh (VRR) | — | No |
| Brightness | 400 nits | 400 nits |
| Colour range | 70.8% NTSC | 118% sRGB |
| HDR | None | None |
| Finish | Glossy | Glossy |
| Touchscreen | Yes | Yes |
| Pen standard | USI | USI 2.0 |
Battery and size
The ASUS Chromebook CM30 Detachable is ahead on battery and weight.
It has a bigger battery, and the Lenovo IdeaPad Duet 3 Chromebook doesn't beat it on anything here.
| Spec | Lenovo IdeaPad Duet 3 Chromebook | ASUS Chromebook CM30 Detachable |
|---|---|---|
| Battery life (maker claim) | Up to 12 hours | Up to 12 hours |
| Battery capacity | 29 Wh | 38 Wh |
| Charger | 30 W | 45 W |
| Charges via | USB-C | USB-C |
| Weight | 0.946 kg | 0.9 kg |
| Dimensions | 258.04 x 164.55 x 7.90 mm | 259.5 x 169.2 x 8.9-9.0 mm |
| Materials | Aluminium + PC + ABS for back cover | 30% recycled aluminium case |
| Durability | — | MIL-STD-810H |
| Hinge | detachable folio keyboard (pogo-pin), keyboard locks when folded to the back | detachable |
| Colour | Misty Blue | Fog Silver |
| Colours available | Misty Blue, Storm Grey | Fog Silver |
Ports and wireless
The ASUS Chromebook CM30 Detachable is ahead on ports and wireless.
It has Wi-Fi 6, and the Lenovo IdeaPad Duet 3 Chromebook doesn't beat it on anything here.
| Spec | Lenovo IdeaPad Duet 3 Chromebook | ASUS Chromebook CM30 Detachable |
|---|---|---|
| Ports | 2x USB-C 3.2 Gen 1 (data, Power Delivery 3.0 charging, DisplayPort 1.4; either port charges), 1x Pogo pin connector (5-point, folio keyboard) | 1x USB-C 3.0 (charging, DisplayPort), 1x 3.5 mm combo audio, 1x pogo-pin interface for detachable keyboard |
| Thunderbolt / USB4 | None | None |
| External displays (max) | 2 | — |
| Card reader | None | None |
| Ethernet | None | None |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6 |
| Bluetooth | Bluetooth 5.1 | Bluetooth 5.2 |
| Mobile data | None | — |
Features
Both have much the same extras.
From the keyboard to the webcam and login, there is little between them.
| Spec | Lenovo IdeaPad Duet 3 Chromebook | ASUS Chromebook CM30 Detachable |
|---|---|---|
| Webcam | 5 MP front + 8 MP rear | 5 MP front + 5 MP rear |
| Backlit keyboard | No | — |
| Keyboard | detachable folio keyboard with touchpad (pogo-pin connected), non-backlit | detachable chiclet keyboard, 1.5 mm key travel, pogo-pin connector |
| Number pad | No | No |
| Touchpad | one-piece multi-touch trackpad on the folio keyboard, 48.8 x 86.8 mm | — |
| Speakers | 2x 1 W stereo | 2x built-in speakers |
| Microphones | dual array, Wake-on-Voice, Google Assistant | multi-array microphone |
| Pen | Supported (sold separately) | Supported (sold separately) |
| Security | Google Security Chip H1 | Google Titan C |
Software and model
The ASUS Chromebook CM30 Detachable is ahead on software and updates.
It gets updates for longer and is newer, and the Lenovo IdeaPad Duet 3 Chromebook doesn't beat it on anything here.
| Spec | Lenovo IdeaPad Duet 3 Chromebook | ASUS Chromebook CM30 Detachable |
|---|---|---|
| Operating system | ChromeOS | ChromeOS |
| Updates until | June 2031 | June 2033 |
| Model number | 82T6002TUK | CM3001DM2A-WS88T-S |
| Released | 2022 | 2023 |