Is the Sennheiser MOMENTUM True Wireless 2 worth the upgrade from the Xiaomi Redmi Buds 4?
Verdict
Clear upgrade
Going from the Xiaomi Redmi Buds 4 to the Sennheiser MOMENTUM True Wireless 2 buys you 16.0 points of HearWiki score - a clear step up that reviewers agree on rather than a marketing refresh. The gains are concentrated in sound (6.5 to 9.0), noise cancelling (5.5 to 7.0) and battery (6.0 to 7.0). You do give up ground on calls (7.0 to 6.0) and value (7.5 to 7.0). On paper: battery life 6 h to 28 h and codecs SBC, AAC to SBC, AAC, aptX. Worth checking: bluetooth goes 5.2 to 5.1 and driver size goes 10 mm to 7 mm. That costs $55 more, or about $3 per point of score - reasonable value for the jump. 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.
- Sound6.59.0
- Noise cancelling5.57.0
- Battery6.07.0
- Calls7.06.0
- Value7.57.0
Spec differences
Only where the two genuinely differ - everything they share is omitted.
| Spec | Redmi Buds 4 | MOMENTUM True Wireless 2 | Direction |
|---|---|---|---|
| Battery life | 6 h | 28 h | |
| Codecs | SBC, AAC | SBC, AAC, aptX | |
| Bluetooth | 5.2 | 5.1 | |
| Water resistance | IP54 | IPX4 | |
| Driver size | 10 mm | 7 mm | |
| ANC type | hybrid | feedback | |
| Quick charge | 5 min → 1 h | 10 min → 1.5 h | |
| Driver | 10 mm dynamic | 7 mm dynamic | |
| Frequency response | 20 Hz - 20 kHz | 5 Hz - 21 kHz |
About this verdict
Direction matters here: this page answers "Redmi Buds 4 to MOMENTUM True Wireless 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.