Oura Ring 4 - Silver - Size 8 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible vs Oura Ring Gen3 Horizon - Rose Gold - Size 13 - Smart Ring - Size First with Oura Ring Gen3 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - 5-7 Days Battery Life
Side-by-side comparison based on Reddit community data

#1 in Fitness Trackers
Oura
Oura Ring 4 - Silver - Size 8 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible
$349.00
100/100Excellent
100% positive0% neutral0% negative
Pros
- +Strongest independent data
- +More comfortable to wear
- +Better at quantifying active energy expenditure/kcals than fitbit
Cons
- -Sleep tracking accuracy is beaten by fitbit
“The sleep tracking beats Oura for accuracy. Fitbit is hard pressed to quantify active energy expenditure outside steps. Kcals always lower than Oura.”

#6 in Fitness Trackers
Oura
Oura Ring Gen3 Horizon - Rose Gold - Size 13 - Smart Ring - Size First with Oura Ring Gen3 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - 5-7 Days Battery Life
$399.00
100/100Excellent
100% positive0% neutral0% negative
Pros
- +More accurate sleep tracking (according to others)
- +Uses lowest sleeping heart rate for rhr calculation
“Some folks recommended Oura ring and found that to be more accurate. ... How Oura uses your lowest sleeping heart rate for sleeping / RHR while the rest use the continuous overnight average; that can ”