Oura Ring 4 Battery Test: Real-World Data Shows 4.8–6.2 Days (Not 8) — 2026 Update
Last Updated: May 2026 | Tested by NexraGear Team (30 Days) QUICK ANSWER BOX Real-world: 4.8–6.2 days | Advertised: “Up to 8 days”Charging time: ~80 min (0-100%) | Fastest top-up: 20 minYear-1 degradation: 15–25% capacity loss reportedKey drain killers: SpO2 ON, Background App Refresh, workout tracking HOW NEXRAGEAR TESTED THIS Tester: NexraGear Wearables Review TeamDevice: Oura Ring 4, Gold, Size 10Test Period: February 1–28, 2026Metrics logged: Battery … Read more