Rings of the Future: Top Smart Rings of 2025 (and What’s Coming in 2026)
Oura Ring 4 (2023) costs $349 plus $5.99/mo, offers about 6–8 days of battery life, and includes PPG heart rate, SpO2, and skin temperature sensors with best-in-class sleep and recovery tracking. Samsung Galaxy Ring (2024) is priced at $399 with no subscription, lasts ~5–7 days per charge, includes PPG heart rate, skin temperature, and accelerometer, and provides AI-powered Energy Score and sleep coaching while lacking ECG, blood pressure, or body composition sensors and is Android-only. Ultrahuman Ring Air (2023) costs $349 with no subscription, offers ~4–6 days of battery, tracks heart rate, HRV, sleep, activity, skin temperature, SpO2, and has
