Sony - LinkBuds Open vs Sennheiser - Momentum True Wireless 4
Between the LinkBuds Open and Momentum True Wireless 4, the LinkBuds Open comes out ahead in driver size and battery — buds, while the Momentum True Wireless 4 wins on battery — with case and active noise cancellation. Overall, the LinkBuds Open scores 69.5 and the Momentum True Wireless 4 scores 54.1 on our Mars Score.
Which should you buy?
The LinkBuds Open is the clear pick on raw spec strength, leading by 15.4 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the LinkBuds Open if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. The biggest gaps in its favor are driver size, battery — buds, weight per bud.
Pick the Momentum True Wireless 4 if audio quality and feature breadth (ANC, codecs, multipoint) are the lead criteria for your purchase. Its strongest claims are battery — with case, active noise cancellation, water resistance.
Both ship with comparable spatial audio, multipoint, so those specs don't separate the two — focus on the differences below.
Bottom line: the LinkBuds Open is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Sony - LinkBuds Open wins
- ▲Driver size — 57.14% more. 11 mm vs 7 mm.
- ▲Battery — buds — 6.67% more. 8 h vs 7.5 h.
- ▲Weight per bud — 1.10 g less. 5.1 vs 6.2.
Why Sennheiser - Momentum True Wireless 4 wins
- ▲Battery — with case — 36.36% more. 30 h vs 22 h.
- ▲Has Active noise cancellation.
- ▲Water resistance: IP54 (vs IPX4).
Spec comparison
Design
| Spec | Sony - LinkBuds Open | Sennheiser - Momentum True Wireless 4 |
|---|---|---|
| Form factor | openlead | in-ear |
| Weight per bud | 5.1 glead | 6.2 g |
| Water resistanceⓘ | IPX4 | IP54lead |
Audio
| Spec | Sony - LinkBuds Open | Sennheiser - Momentum True Wireless 4 |
|---|---|---|
| Driver sizeⓘ | 11 mmlead | 7 mm |
| Active noise cancellationⓘ | false | truelead |
| Transparency mode | false | truelead |
| Spatial audioⓘ | true | true |
Battery
| Spec | Sony - LinkBuds Open | Sennheiser - Momentum True Wireless 4 |
|---|---|---|
| Battery — buds | 8 hlead | 7.5 h |
| Battery — with case | 22 h | 30 hlead |
| Wireless case chargingⓘ | false | truelead |
Connectivity
| Spec | Sony - LinkBuds Open | Sennheiser - Momentum True Wireless 4 |
|---|---|---|
| Bluetoothⓘ | 5.3 | 5.4lead |
| Codecs | AAC,SBC | aptX Lossless,LC3,AAC,SBC |
| Multipointⓘ | true | true |
| In-ear detection | false | truelead |
Frequently asked
Which has longer battery, LinkBuds Open or Momentum True Wireless 4?+
LinkBuds Open lasts 8h per charge vs 7.5h.
Do LinkBuds Open or Momentum True Wireless 4 support multipoint?+
Both support multipoint pairing.
Which has ANC, LinkBuds Open or Momentum True Wireless 4?+
Momentum True Wireless 4 has ANC; LinkBuds Open does not.
Spec-level deep dives
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