Battery life;3 hour
Battery type;Lithium-ion
Charge time;2 hours
Charger;5V - 0,5А
Charging cable;4 pin Magnetic charging cable
Speaker;Bone conduction speaker
Frequency response;20Hz~20KHz
Sensitivity;96 ± 3dB
Standby time;Up to 10 Days
Wireless type;Bluetooth v5
HR Sensors;Texas instruments
IMU Sensors;3D digital accelerometer
IMU Sensors;3D digital gyroscope
Memory;1 Gb
App;iOS and Android app
Warranty;2 Years
Water resistance;ATM5 (Waterproof)
Weight;50 g
Dimensions;2,4 x 0,55 in (61 x 16 mm)
Indication;8 Led indicators
Buttons;1 button mode
Metrics;Pace, Swim Time, Pool Time, Underwater distance, Breath count, Heart rate, Stroke rate, Stroke count, Turn time, Swimming style
What swimmers say
“Finally, I have a device to listen to music and to track my progress. It's really efficient for the endless pool training.”
Dave Collins
Swimmer, USA
“This device is fantastic for training. I love the battery life. I can hear with absolute clarity while I am swimming.”
Jennifer Cook
Open water swimmer, Australia
“SONR Tracker is the best assistant! I find it really helpful to hear my heart rate and time while swimming. And it's accurate and reliable.“
Samuel Evans
Competitive swimmer, UK
“The sound quality was really clear. I would definitely look to have SONR Tracker as a permanent feature that I could use on our camps, trainings and events.”