Artikel: Complete COLMI Smart Ring Lineup Compared: R02 to R12
Complete COLMI Smart Ring Lineup Compared: R02 to R12
COLMI's smart ring lineup spans eight models — from the entry-level R02 to the feature-rich R12 with its touchscreen display. Each ring is designed with a specific type of user in mind, and while they all track the same core health metrics, they differ in ways that matter: battery life, waterproofing, design approach, size range, and unique features. This complete guide compares the entire COLMI ring lineup so you can find the right one for your lifestyle without wading through spec sheets.
What All COLMI Smart Rings Have in Common
Before comparing the differences, it's useful to know what every COLMI smart ring shares:
- Heart rate monitoring: Continuous 24/7 optical HR tracking
- SpO2: Blood oxygen saturation measurement
- Sleep tracking: Light, deep, and REM stage analysis
- Activity tracking: Steps, calories, active distance
- Companion app: Da Fit (free, iOS and Android, no subscription)
- Connectivity: Bluetooth to smartphone
- Form factor: Stainless steel construction, jewellery-like appearance
- No display: All data accessed via the companion app
COLMI R02 — The Entry-Level Choice
The R02 is the most affordable smart ring in the COLMI lineup and the ideal starting point for first-time smart ring buyers. It delivers the full core health monitoring suite — heart rate, SpO2, sleep, activity — in a clean stainless steel design. Charging is via a direct magnetic USB cable. Available in sizes 8–12.
Best for: First-time buyers · Budget-conscious shoppers · Anyone who wants smart ring basics at the lowest price
Key spec: 5–7 day battery · IP68 · Magnetic USB charging
COLMI R03 — R02 With a Portable Charging Case
The R03 is functionally identical to the R02 but adds a portable charging case with its own built-in battery. This makes it significantly more convenient to charge on the go, particularly for travellers. The case holds multiple ring charges before needing replenishment from a wall outlet. If you travel frequently, the R03 is worth the small price premium over the R02.
Best for: Frequent travellers · Users who want charging convenience · Those who find cable-charging a small ring fiddly
Key spec: 5–7 day ring battery + case charges · IP68 · Charging case included
COLMI R06 — The Swimmer's Choice (5ATM)
The R06 is designed for active and aquatic lifestyles, featuring an impressive 5ATM waterproof rating. Unlike the IP68 rating on other rings (safe for splashes and brief immersion), 5ATM certifies protection to 50 metres water pressure — making the R06 suitable for pool swimming, snorkelling, water sports, and extended water exposure. Health tracking features are the same as other models, but the waterproofing gives it a significant durability advantage for active users.
Best for: Swimmers · Water sports enthusiasts · Users who want maximum waterproofing · Active lifestyles
Key spec: 5–7 day battery · 5ATM waterproof · Available in multiple sizes
COLMI R07 — 30-Day Battery Life
The R07 is defined by one extraordinary specification: a 30-day battery life. No other smart ring at this price point comes close to this figure. This is achieved through power-efficient sensor sampling and intelligent data management. In real-world testing, users typically achieve 20–28 days with full monitoring enabled, and up to 30 days with lighter usage. For users who find frequent charging frustrating, the R07 is genuinely transformative.
Best for: Users who hate charging · Frequent travellers · Anyone who wants the most hands-off smart ring experience
Key spec: Up to 30 days battery · IP68 · Power-optimised sensor sampling
COLMI R09 — The Lightest Ring (Concave Design)
The R09 takes a unique design approach: a concave outer profile that reduces the ring's weight by approximately 20% compared to conventional smart ring designs. This makes it the most comfortable ring in the lineup for all-day and overnight wear. Users who have tried other smart rings and found them too heavy or noticeable during sleep should try the R09. Health features are identical to other models; the R09 prioritises wearability above all else.
Best for: Users sensitive to ring weight · Those prioritising overnight comfort · People who want the most discreet smart ring available
Key spec: 5–7 day battery · IP68 · Concave design · ~20% lighter
COLMI R10 — 21 Sizes and a Premium Charging Case
The R10 stands out for two features: the widest size range in the lineup (21 size options) and a premium charging case similar to the R03. The expanded size range ensures a perfect fit for virtually any finger, which matters enormously for sensor accuracy and comfort. The charging case provides the same travel-friendly charging convenience as the R03. If finding a perfect ring size is a concern, the R10 is the best choice in the entire COLMI range.
Best for: Users who want a perfect, precise fit · Travellers who want case charging · Those who've had sizing issues with other rings
Key spec: 21 size options · 5–7 day battery + case · IP68 · Premium charging case
COLMI R11 — The Stress-Relief Ring (Rotating Design)
The R11 is the most unique model in the lineup with its rotating outer band. This anti-anxiety spinner design allows you to rotate the outer ring with your thumb as a tactile stress-relief mechanism — similar to a fidget ring, but combined with full smart ring health tracking. It's the only smart ring on the market that combines a fidget/spinner design with comprehensive health monitoring. A thoughtful choice for users who experience stress or anxiety and want a discreet coping mechanism alongside their wellness tracking.
Best for: Users who experience stress or anxiety · Those who like tactile fidget mechanisms · Anyone who wants a truly unique ring design
Key spec: 5–7 day battery · IP68 · Rotating outer band · Full health tracking
COLMI R12 — The Smart Ring With a Display
The R12 is the most feature-rich model in the COLMI ring lineup and the only one with a touchscreen display. This small screen allows you to check certain metrics directly on the ring without reaching for your phone — bridging the gap between smart rings and smartwatches. The R12 also offers the most comprehensive health monitoring suite in the lineup. It's priced higher than other models to reflect the added technology, but for users who want the convenience of a display without the bulk of a full smartwatch, it's a compelling option.
Best for: Tech enthusiasts · Users who want some screen functionality without a full smartwatch · Those who want the most advanced COLMI ring
Key spec: Touchscreen display · Full health suite · IP68 · Multiple sizes
Complete COLMI Smart Ring Comparison
| Model | Battery | Water | Charging | Unique Feature |
|---|---|---|---|---|
| R02 | 5–7 days | IP68 | Magnetic cable | Entry price |
| R03 | 5–7 days+ | IP68 | Charging case | Portable case |
| R06 | 5–7 days | 5ATM | Magnetic cable | 5ATM swimming |
| R07 | Up to 30 days | IP68 | Magnetic cable | 30-day battery |
| R09 | 5–7 days | IP68 | Magnetic cable | Lightest design |
| R10 | 5–7 days+ | IP68 | Charging case | 21 size options |
| R11 | 5–7 days | IP68 | Magnetic cable | Rotating band |
| R12 | 5–7 days | IP68 | Magnetic cable | Touchscreen display |
Which COLMI Smart Ring Is Right for You?
- Best for beginners: COLMI R02 or R03
- Best for swimmers: COLMI R06
- Best for battery life: COLMI R07
- Best for comfort: COLMI R09
- Best for sizing precision: COLMI R10
- Best for stress relief: COLMI R11
- Best for tech features: COLMI R12
- Best for travel: COLMI R03 or R10 (charging case)
All models are available in our store with free UK delivery and a hassle-free returns policy. If you're still not sure which ring is right for you, reach out to our team and we'll help you choose.