U&i earbuds 500 hours of standby are now a reality: the domestic brand has launched two new truly wireless series — the Couple Series and the Denim Series — that completely redefine battery expectations in the affordable TWS segment. While most earbuds on the market top out at 50 to 60 hours of total playback, U&i is claiming figures that dwarf the competition.
U&i Couple Series — Four Buds, 400-Hour Battery Backup
The U&i Couple Series is unlike any other TWS in its category: the charging case ships with four earbuds instead of the usual two, so two people can share a single case or you always have a spare pair ready. Each bud is powered by a super capacitor rather than a conventional lithium-ion cell, a choice that typically translates to faster charging cycles and longer component lifespan.
Individual bud playback time stands at 10 hours, and the case — which houses a 450 mAh battery — extends total usage to 100 hours. U&i claims an overall battery backup of 400 hours for the Couple Series. Connectivity is handled by Bluetooth 5.0 + EDR, and the buds support touch controls along with passive noise cancellation. The Couple Series is available in Black and Gray colorways.
U&i Denim Series — 500 Hours Standby TWS
The Denim Series steps up the connectivity to Bluetooth 5.1 + EDR and is where U&i's headline claim of U&i earbuds 500 hours comes in — that figure refers to the standby time. Each bud carries a 35 mAh battery delivering 5 hours of playback per charge. The 300 mAh charging case adds another 40 hours of top-ups, with the full standby time reaching 500 hours. The Denim Series is offered in Black and White.
Specs at a Glance
| Feature | Couple Series | Denim Series |
|---|---|---|
| Bluetooth | 5.0 + EDR | 5.1 + EDR |
| Bud battery | Super capacitor | 35 mAh per bud |
| Playback per bud | 10 hours | 5 hours |
| Case battery | 450 mAh | 300 mAh |
| Case playback | 100 hours | 40 hours |
| Total claimed backup | 400 hours | 500 hours standby |
| Buds in case | 4 | 2 |
| Colors | Black, Gray | Black, White |
| Price | Rs 2,499 | Rs 2,999 |
Price and Availability
The U&i Couple Series is priced at Rs 2,499 and the Denim Series at Rs 2,999. Both are affordable options for buyers who prioritize battery longevity over premium audio features. For more products from this brand, explore the full range on our brand listings page.
Should You Buy?
If battery anxiety is your biggest pain point with TWS earbuds, U&i's new launches make a compelling case. The Couple Series is especially novel for its four-bud configuration — ideal for couples or commuters who share audio gear. The Denim Series, meanwhile, is a straightforward pick for anyone who wants set-and-forget endurance at under Rs 3,000. Neither model is aimed at audiophiles, but on pure battery terms both are genuinely hard to beat at this price.
