AI Wearables Battery Life Guide: What to Expect and How to Extend It
Real-world battery life for every major AI wearable in 2026, plus tips to extend battery life and what to do when battery degrades over time.
Smart Ring Battery Life
| Smart Ring | Manufacturer Claim | Real-World | Charge Time |
|---|---|---|---|
| Oura Ring 4 | 7 days | 5–7 days | 30–60 min |
| Samsung Galaxy Ring | 7 days | 5–7 days | 60 min |
| RingConn Gen 2 | 10–12 days | 10–12 days | 60 min |
| Ultrahuman Ring Air | 6 days | 5–6 days | 60 min |
| Amazfit Helio Ring | 7 days | 5–7 days | 90 min |
Smart Glasses Battery Life
| Smart Glasses | Active Use | With Charging Case |
|---|---|---|
| Meta Ray-Ban Gen 2 | 8+ hours | 36 hours |
| Meta Ray-Ban Gen 1 | 4 hours | 20 hours |
| Razer Anzu | 5 hours | 20 hours (case) |
| Viture Luma Pro | 3 hours | N/A (no case) |
| Xreal Air 2 Pro | 3 hours | N/A (no case) |
AI Pin Battery Life
| AI Pin | Battery Life | Charge Time |
|---|---|---|
| Rabbit R1 | 8 hours mixed use | 90 min |
| Plaud Note Pro | 15 hours continuous recording | 90 min |
| Plaud NotePin | 10 hours continuous recording | 60 min |
Hearing Aid Battery Life
| Hearing Aid | Battery Type | Life Per Charge/Cell |
|---|---|---|
| Lexie B2 Plus | Rechargeable | 16 hours per charge |
| Lexie B1 | Replaceable (size 312) | 5–7 days per cell |
| Jabra Enhance Plus | Rechargeable | 10 hours per charge (24h with case) |
| Sony CRE-E10 | Replaceable (size 312) | 5–7 days per cell |
How to Extend Battery Life
Smart Rings
- Disable SpO2 monitoring (extends battery by 1–2 days on Oura Ring 4)
- Disable continuous heart rate tracking (extends battery by 1 day)
- Keep firmware updated (Oura has improved battery life via firmware)
Smart Glasses
- Reduce video recording (recording drains battery faster than photos)
- Lower audio volume (speakers are the biggest drain)
- Disable "always listening" for voice assistant (Meta Ray-Ban Gen 2)
- Use the charging case between sessions
AI Pins
- Disable Wi-Fi when not in use (Rabbit R1)
- Reduce screen brightness (Rabbit R1)
- Use sleep mode when not recording (Plaud devices)
Frequently Asked Questions
It varies by category: smart rings last 5-12 days per charge, smart glasses last 3-8 hours per charge (with charging case providing 20-36 hours total), AI pins last 8-15 hours per charge, and OTC hearing aids last 10-16 hours per charge (or 5-7 days per replaceable cell).
Tips for extending battery life: (1) Disable unused features (SpO2 monitoring on smart rings, always-listening voice assistants on smart glasses, Wi-Fi on AI pins). (2) Keep firmware updated — manufacturers often improve battery life via updates. (3) Use charging cases and docks between sessions. (4) Lower audio volume on smart glasses — speakers are the biggest battery drain.