Doesn't work well at all. Jumps from 0 steps to 100 sometimes. Sometimes goes backwards. Garbage. I asked for help and they refunded me instead of offering to send a working replacement. They didn't even ask if I want one. Bad experience, don't waste your time.
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https://www.amazon.com/Chianruey-Fitness-Activity-Waterproof-Pedometer/dp/B07DRHPXMQ