The Garmin epix™ (Gen 2)- Apple's battery team need to speak to Garmin

The stunning 1.3? always-on AMOLED display brings your watch to life, even under bright sunlight.

Trusted button controls that work in any environment are matched with a responsive new touchscreen interface for quick access to selections and map features.

Fit the watch’s look to your lifestyle with options for a sapphire display, titanium bezel or stainless steel bezel... More here.

£899 is a lot of money, but this is a 'complete' fitness watch in almost every sense apart from 4G. The 16 day battery life with an AMOLED display is extremely impressive and even with always-on enabled you get 6 days.