Is the Nothing CMF Buds 2 worth the upgrade from the OnePlus Buds Z?
Verdict
Clear upgrade
Going from the OnePlus Buds Z to the Nothing CMF Buds 2 buys you 18.5 points of HearWiki score - a clear step up that reviewers agree on rather than a marketing refresh. The gains are concentrated in battery (6.5 to 8.8), value (7.5 to 9.4) and sound (6.0 to 7.7). On paper: battery life 5 h to 13.5 h, active noise cancelling and bluetooth 5.0 to 5.4. It's also $13 cheaper, which makes this an easy call. If your current pair is worn out or the gains line up with how you listen, this one is worth the money.
What actually changes
Sub-scores both products have, on the same 0-10 scale. Bars extend right for a gain, left for a loss.
- Sound6.07.7
- Battery6.58.8
- Calls6.06.5
- Value7.59.4
Spec differences
Only where the two genuinely differ - everything they share is omitted.
| Spec | Buds Z | CMF Buds 2 | Direction |
|---|---|---|---|
| Battery life | 5 h | 13.5 h | |
| Active noise cancelling | No | Yes | |
| Bluetooth | 5.0 | 5.4 | |
| Multipoint pairing | No | Yes | |
| Battery incl. case | 20 h | 55 h | |
| Driver size | 10 mm | 11 mm | |
| Microphones | 2 | 6 | |
| Transparency mode | No | Yes | |
| Companion app | No | Yes | |
| Custom EQ | No | Yes | |
| Wear detection | No | Yes | |
| ANC type | none | hybrid | |
| Quick charge | 10 min → 3 h | 10 min → 4 h | |
| Driver | 10 mm dynamic | 11 mm driver |
About this verdict
Direction matters here: this page answers "Buds Z to CMF Buds 2". The other direction is a separate question with a different answer. Scores blend published review verdicts across true wireless and shift as new reviews land, so a marginal call today may not be one next quarter.