My beloved polar loop , which I've had since 2014 has finally given up the ghost. I'm looking for a new fitness tracker, and I wonder if anyone can recommend anything? It need to be waterproof because I swim and do aqua aerobics, but I mainly count steps. Ideally I'd like something that tracks distance for swimming, not lengths. And possibly with a wrist HR monitor, but I think having all those options might be out of my budget £100, pefereably less. Any suggestions?