Choose your own colors: pick any of the 64 watch colors for each section (time, date, step graph, battery, indicators, weekdays, temperature and divider lines)
• Rainbow mode for any section: each graph column, battery segment, digit, label or day gets its own color
• New backgrounds: white, pale gray, light gray, medium gray, dark gray, charcoal and black, plus the classic green-gray LCD, warm and mint
• Ghost segments now tint automatically to match each section's color
• Presets: the old themes plus Rainbow on black and Rainbow LCD now fill in all the colors at once, and you can fine-tune from there
• Your current theme carries over automatically
Big battery savings: the face now redraws only the seconds each second instead of the whole screen, and the full redraw itself is faster
• Step history is read at most once a minute instead of on every movement update
• New Seconds option: Always, After a flick, or Off. After a flick shows live seconds for 30 seconds when you raise your wrist, then the watch goes back to updating once a minute to save battery
• Your previous seconds setting carries over
Overall legibility improvements: Larger battery percentage and weekday strip, new DST indicator, PM indicator moved.
Larger, easier to read weekday strip and temperature.