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Alternatives to Colmi R03

8 smart rings at a similar price that compete with the R03 — what each does better, what it gives up and how the price compares.

Alternatives to the R03

Colmi R10
4
Colmi · 2026R10
7.8
18% pricier ≈ $35
  • Weight 2.7 g vs 4.7 g
  • Battery life (smartwatch mode) 4 days vs 7 days
Colmi RING 2
5
Colmi · 2026RING 2
43% pricier ≈ $40
  • Battery life (smartwatch mode) 6 days vs 7 days
Amazfit Helio Ring
7
Amazfit · 2024Helio Ring
  • Water resistance 10 ATM vs 5 ATM
  • Battery life (smartwatch mode) 4 days vs 7 days
Colmi R12
8
Colmi · 2025R12
3.7
36% pricier ≈ $40
  • Water resistance 1 ATM vs 5 ATM
  • Battery life (smartwatch mode) 5 days vs 7 days
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