Samsung Galaxy Ring in 2026: Updates Fixed It?! (Scientific Review)

Introduction to Smart Rings and Testing Focus00:00

Nowadays, there are a lot of smart rings out there. The market leader is the Aura ring, and the reviewer is wearing two of them. Recently tested the Samsung Galaxy Ring again. Initial testing showed poor sleep stage tracking. New Galaxy watches like the Galaxy Watch Ultra 2, Galaxy Watch 8, and Galaxy Watch 8 Classic have improved sleep stage tracking. Tests if the improved sleep stage tracking came to the Galaxy Ring and if it's good for tracking sports.

Rob is a post-doctoral scientist specializing in biological data analysis. Reviews focus on objective data to determine which devices can be trusted for health and sports tracking. Focuses on sleep (sleep stages) and heart rate during sports. Testing multiple rings. Other parameters like heart rate variability require specialized testing, not covered here.

Normally starts with heart rate during exercise, but for rings, main purpose is health tracking, not exercise. Starts with sleep stage tracking. Will show heart rate testing during exercise; if Galaxy Ring tracks well after firmware updates, it would be the first recommendable ring for exercise.

Sleep Stage Tracking Analysis01:32

Uses confusion matrix for analysis. Reference device is ZMAX EG headband, designed for sleep tracking, used in scientific literature. Measures brain waves, silver standard (gold standard is polysomnography with more electrodes; ZMAX has two pairs for eye movements and brain waves).