I bought my partner a similar one and she loves it. Just enough information to be useful, but not so much that it becomes an annoyance. Battery is great, and provides some nice customisation for the face of the watch.
Some info:
Functions: Activity Tracker, Challenge Friends to a Workout, Control Your Music, Customizable Buttons, Heart Rate Tracking, Interchangeable Watch Band, Notifications, Personalise Your Dial, Visualized Workout Routes
Connectivity: Bluetooth Smart Enabled / 5.0 Low Energy
Battery Life: 2+ Weeks (Based on usage)
Case Size: 50 mm
Dial Colour: Black
Interchangeable Compatibility: 24 mm
Platform: LATITUDE HYBRID SMARTWATCH HR
Sensors: Accelerometer, Heart Rate
Storage: 16 MB
Strap Width: 24 mm
Water Resistance: 3 ATM
Battery Type: SP390919
Battery Charge Time: Charge Time 60 min to 80%
50mm..geez