3 Alternatives to the OURA Ring 4 (and Which One Fits You Best)

The first alternative is the Oura Ring 4 - Silver - Size 9 - Size Before You Buy (£349, 4.2★). This is essentially the same product as the main listing, but in a different size, so the comparison is really about fit rather than features. What’s better: if size 8 feels too tight, size 9 may be more comfortable overnight, and comfort matters because a ring that spins or presses into your finger can reduce wear time and hurt sleep data consistency. What’s worse: you’re still paying the same price, getting the same 4.2★ rating, and you’re still locked into the Oura ecosystem with no major feature upgrade. Choose this if you already know Oura is the tracker you want, but you need a different fit.

The second alternative is the Oura Ring 4 - Silver - Size 7 - Size Before You Buy (£349, 4.2★). Like the size 9 version, this is not a different model, just a different size option. What’s better: smaller fingers often get a more secure fit with less movement, which can improve heart rate and sleep tracking stability. What’s worse: if it’s too snug, it can be uncomfortable, especially overnight or during warm weather when fingers swell slightly. This is the best alternative for someone who likes the Oura Ring 4’s sleep-first approach but needs a smaller size for better wearability.

The third alternative is the Withings ScanWatch Nova (£464.89, 4.2★). This is a hybrid smartwatch rather than a ring, so it gives you a very different experience: a traditional watch look with ECG, SpO2, temperature monitoring, sleep tracking, respiratory health tracking, cycle tracking, and up to 30 days of battery life. What’s better: battery life is far longer than the Oura’s claimed up to 8 days, and the watch form factor may suit people who dislike wearing a ring at night or want a more versatile device for daytime use. The extra health features also make it more appealing if you want a broader snapshot of wellbeing rather than sleep alone. What’s worse: it costs more, it’s bulkier, and wrist-worn sleep tracking can be less comfortable for some people than a ring. Also, sleep tracking accuracy can vary between devices and users, so a longer feature list does not automatically mean better sleep insights. Choose the ScanWatch Nova if you want a premium health watch with strong battery life and don’t mind paying more for the larger form factor.

In short, the Oura size 7 and size 9 options are best if your main issue is fit, while the Withings ScanWatch Nova is the real alternative if you want a non-ring wearable with more features and much longer battery life. If your priority is the most discreet sleep tracker, Oura still has the advantage; if you want broader health tracking and less charging, Withings is the more practical pick.