Features & Specs
Chipset: RF03 with Bluetooth 5.0 support for Android (5.1+) and iOS (8+)
Sensors: Heart rate, blood oxygen (SpOâ‚‚), sleep, and movement via STK8321 and VC30F modules
Water Resistance: Rated 5 ATM – suitable for swimming and showering
Battery: 15 mAh with 5–7 days of use, charged via a magnetic cable and included charging case
Build: Made from stainless steel, weighing around 4.7 g
Sophie P. –
The COLMI R03 Smart Ring is a gem for health tracking. With advanced sensors for heart rate, blood oxygen, sleep, and activity, it keeps you informed. The sleek build and water resistance make it the perfect companion for every day.
Daniel Thompson –
I’ve been using the COLMI R03 Smart Ring for a while now, and I’m impressed. The heart rate and sleep sensors are spot on, helping me keep tabs on my health daily. The Bluetooth 5.0 works seamlessly with my Android phone. The water resistance is a big plus; I can wear it swimming without worry. The battery life is decent, lasting a good 5 to 7 days. Overall, a handy little gadget that fits my active lifestyle perfectly.
Arjun Devlin –
this smart ring from COLMI is a handy gadget for tracking my daily activities. It helps me stay on top of my steps, heart rate, and even notifications without needing to constantly check my phone. Quite impressed with its sleek design and ease of use. Great value for the price.
David White –
The COLMI R03 Smart Ring has been a real game changer for me. It helps me track my daily steps, heart rate, and sleep quality effortlessly. The battery life is impressive, lasting me for days without needing a recharge. Such a handy gadget to keep me on top of my fitness goals. Top notch.
Harry Thompson (verified owner) –
The COLMI R03 Smart Ring is a real game changer when it comes to tracking everyday activities. The heart rate sensor works like a charm, and I love that it’s water resistant I never worry about taking it off, even in the shower or pool. Honestly, for the price, it’s a steal. Highly recommend it for anyone looking to monitor their health on the go.
Samantha K. –
The COLMI R03 Smart Ring is brilliant. I love how it tracks my heart rate, sleep, and even my blood oxygen levels. It’s really lightweight, so I hardly notice I’m wearing it. The water resistance is a bonus as I can keep it on in the shower. The packaging was nice, and the customer service was excellent. Great buy.
Sophie P. –
The COLMI R03 Smart Ring is a gem for health tracking. With advanced sensors for heart rate, blood oxygen, sleep, and activity, it keeps you informed. The sleek build and water resistance make it the perfect companion for every day.
Emily Nguyen (verified owner) –
This COLMI R03 Smart Ring is a game changer for tracking my health. The blood oxygen and heart rate sensors are impressively accurate. I love how lightweight it is; sometimes, I forget I’m wearing it. The battery life is fantastic and the water resistance is a plus. It’s like having a personal health assistant on my finger. 5 stars for sure.
Marcus Johnson (verified owner) –
the COLMI R03 Smart Ring has changed my life I used it to monitor my sleep and noticed my sleeping patterns improved now I feel more rested during the day amazing little gadget go get it folks. five starsproductNameSKU.
Patrick Jones (verified owner) –
Ever since I started using this smart ring, I’ve found it incredibly handy. It helps me keep track of my daily steps, messages, and calls without having to constantly check my phone. The convenience of having notifications on my finger is a game changer for my productivity.
Samir Patel (verified owner) –
I’m over the moon with this smart ring. It’s like having a tech wizard on my finger. The delivery was quicker than a racing car, and the packaging was as neat as a pin. I can now control my phone with a simple twist of my hand – it’s pure magic. So light and comfy, I often forget I’m even wearing it. A real gem in the world of wearable tech. Would recommend it to anyone looking to add a touch of futuristic flair to their life.