CNBRO Smart Fitness Ring – Activity & Heart Monitor

This elegant ring blends jewelry-style design with smartwatch-level sensors so you can track daily activity without wearing a wristband. Lightweight and water-resistant (IP68), it links via Bluetooth 5.2 to iOS and Android devices, provides remote photo control, and stores exercise, sleep and menstrual cycle records in the Da Rings app for quick review.

How accurately will it count my steps and calories?

The CNBRO ring uses an internal pedometer and motion algorithms to convert movement into step counts and calorie estimates. While it provides useful day-to-day trend data, like any ring or wrist tracker, absolute calorie numbers are estimates and work best when paired with consistent usage.

• Step tracking with continuous motion sensing
• Distance calculation derived from steps and stride assumptions
• Calories estimated from activity intensity and personal profile in Da Rings
• Supports 100+ exercise modes for more specific activity logging

Can it monitor heart rate and sleep while still looking like jewelry?

Yes — the CNBRO ring houses a green-light heart rate sensor in a stainless-steel housing that measures pulse and records night sleep automatically. It gives overnight sleep duration and depth analysis within the app so you can track trends while wearing a subtle, ring-style device.

• Continuous heart rate capture via built-in optical sensor
• Automatic sleep detection and basic sleep-stage insights
• Fast rechecks through the Da Rings app for spot heart-rate readings
• Lightweight 5 g design for comfortable overnight wear

How long is the battery life and what does charging involve?

The ring contains an 18mAh battery that typically delivers 3–5 days of working time on a single charge depending on usage and features enabled. Recharge is fast and simple using the included magnetic charger and usually completes in about 1–2 hours.

• 18mAh internal battery with 3–5 days typical working time
• Magnetic charging cradle included for easy alignment
• Full charge in roughly 1–2 hours
• Bluetooth 5.2 for stable, low-power connection to your phone

Is the ring durable and what maintenance should I follow?

The CNBRO ring is crafted from stainless steel and rated IP68 for water resistance so it tolerates rain, handwashing and sweat. Avoid hot baths, saunas, diving and water-related work to protect seals and electronics; remove the ring for harsh chemicals and high-temperature exposure.

• Stainless-steel housing resists wear and keeps a polished look
• IP68 protection — safe for daily water exposure but not hot-water bathing or diving
• Lightweight 5 g construction that won’t interfere with daily tasks
• Pair with the Da Rings app for firmware updates and settings

Who is this for: The CNBRO Smart Fitness Ring is aimed at women who want a discreet, jewelry-like tracker that records activity, heart rate, sleep and menstrual cycle information without a bulky wrist device. It suits anyone seeking a lightweight daily tracker that blends style with practical health and exercise monitoring, compatible with iOS 10+/Android 5.0+ devices.