I have a Scosche, it's a few years old so may not be the current version. Works fine using ANT or Bluetooth, paired with a Garmin Touring+ or phone. There's possibly a slight lag compared to a Garmin chest strap, very slight and not always, otherwise just as accurate. Came with two sizes of strap for wrist or further up the arm, I prefer the wrist, though I notice current adverts are all showing them up the arm. Not a lot else to review, does what you'd expect, comfortable, responds quickly, starts easily, lasts around 6 hours. The strap is holding up well, replacements are available or it wouldn't be difficult to make another. If there's any downside it's that there's no indication of battery level and it only charges via a cradle.