I'm looking for a fitness tracker and could do with some recommendations - would like it to monitor/record heart rate and, if possible, oxygen levels too. Chest strap/non chest strap I'm not too fussed either way.
Ideally it ought to be waterproof too(as in able to go for a walk/run in the rain - not swimming).
Ideally it ought to be waterproof too(as in able to go for a walk/run in the rain - not swimming).