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- N1X Ultra

NextringSmart ring
Nextring N1X Ultra
Nextring N1X Ultra is a smart ring released in 2025. Key specs: battery life (smartwatch mode) 10 days, water resistance 5 ATM, weight 4 g.
5.0Score
Health tracking8.8
Build & durability3.5
price range$215–265Reference price converted from EUR
- Year
- 2025
- Type
- Smart ring
- Brand
- Nextring
- Popularity
- #128 of 891
- Model numbers
- Nextring N1X Ultra
10 daysBattery life (smartwatch mode)
5 ATMWater resistance
4 gWeight
Spec guide
How it ranks among smart rings of 2025
Battery life (smartwatch mode) · 10 daysBottom 47%Water resistance · 5 ATMBottom 38%Weight · 4 gTop 6%
Compared with smart rings released in 2025. Bars show the share of models it beats.
compared with other smart rings
Why is N1X Ultra a good choice?
Battery life (smartwatch mode): 10 daysbetter than 83% of smart rings
Weak points
Weight: 4 gworse than 80% of smart rings
Water resistance: 5 ATMworse than 96% of smart rings
In rankings
Specifications
Full specifications
Design & durability
- Weight
- 4 g
- Water resistance
- 5 ATM
- Water rating (maker)
- 5 atm / 50 m
Battery
- Battery life (smartwatch mode)
- 10 days
Health sensors
- Optical heart rate
- Yes
- Blood oxygen (SpO2)
- Yes
- Skin temperature
- Yes
- Sensors
- heart rate, SpO2, accelerometer
Specs are collected from manufacturers and open databases and normalised to one format; check details with the seller before you buy.












