In many ways, the Garmin Forerunner 265s is just the 255 with an AMOLED screen. That might sound a little unimpressive, but it means it's still one of the best sports watches you can buy. That screen is bright and colourful and gives it a more smartwatch-y feel in use, along with new training insights and a solid battery life - although that will take a knock with the always-on display, so use it with that in mind.
Good quality AMOLED screen; Strong optical heart rate performance; Multiband mode gives GPS a boost;
More expensive than the Forerunner 255; Battery drop with always-on screen mode;