Oura Ring Gen3 vs Oura Ring 4 – Worth the Upgrade? (Sleep, HR & ECG 2025 Review)
Comparing Oura Ring Gen3 vs Oura Ring 4 and not sure the new sensors are worth the $100 jump? In two minutes we test sleep tracking, 24 / 7 heart-rate, on-demand ECG, and battery life to find out who should upgrade—and who can save the cash.
Today’s prices
• Gen 3 → https://amzn.to/45AlGuZ
• Gen 4 – ECG → https://amzn.to/3HgJom9
(Prices checked 4 Jun 2025, see live deals above)
Key spec differences
• Continuous daytime HR & SpO₂ – Gen 4 only
• On-demand single-lead ECG – Gen 4 only
• Battery – Gen 3 ≈ 7 days · Gen 4 ≈ 5 days
• New multi-LED optical sensor array
• Both: Temp trend, HRV, sleep stages
Chapters
00:00 Hook – Are the new sensors worth the upgrade?
00:12 Sleep & Recovery users vs Active Users
00:23 Multi LED optical engine
00:34 Gen 4 heart rate accuracy during fitness
00:42 Gen 3 | Gen 4| Whoop 4 | Polar H10 chest strap comparison
01:28 Oura Ring Gen3 vs Oura Ring 4 comparison
02:06 Who should upgrade
02:18 Closing remarks
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