vs
8.8Noise control & calls7.2
4.2Battery5.0
3.4Build & features5.1
Why is QuietComfort Ultra Earbuds better than LinkBuds S?
- Charging time1 h vs 2 h2×
- aptXYes · LinkBuds S: No
- Total with charging case24 h vs 20 h+20%
Why is LinkBuds S better than QuietComfort Ultra Earbuds?
- Battery life6 h vs 9 h+50%
- LDACNo · QuietComfort Ultra Earbuds: Yes
- Earbud weight (each)6.2 g vs 4.8 g+30%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | — | 5 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 40,000 Hz |
| Spatial / 3D audio | Yes | — |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Transparency / ambient mode | Yes | Yes |
| Microphones | 8 | — |
| Battery & charging | ||
| Battery life | 6 h | 9 h |
| Battery life with ANC | — | 6 h |
| Total with charging case | 24 h | 20 h |
| Charging time | 1 h | 2 h |
| Quick charge (claimed) | 20 min → 2 h | — |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.2 |
| Bluetooth codecs | aptX Adaptive, SBC | LDAC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | Yes | No |
| LDAC | No | Yes |
| Multipoint (two devices) | Yes | Yes |
| LE Audio | — | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Alexa, Google Assistant |
| Companion app | Yes | — |
| Design & build | ||
| Earbud weight (each) | 6.2 g | 4.8 g |
| Protection rating | IPX4 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
Related comparisons
vs
Bose QuietComfort Ultra EarbudsvsGoogle Pixel Buds Pro 25.68.3
vsApple AirPods 4vsBose QuietComfort Ultra Earbuds4.45.6vs
Bose QuietComfort Ultra EarbudsvsSoundcore P30i5.68.4vs
Bose QuietComfort Ultra EarbudsvsBose Ultra Open Earbuds5.64.7
vsSoundcore Sport X20vsBose QuietComfort Ultra Earbuds9.35.6
vsBose QuietComfort Ultra Earbuds (2nd Gen)vsBose QuietComfort Ultra Earbuds4.85.6