Analog watchface for Amazfit Balance 3 with your glucose from Watchdrip+ Service drawn on the rim.

• Range scale on the rim (2–20 mmol/L, target band highlighted) with a glowing marker and a comet tail that shows where your glucose came from over ~15 minutes.
• Contour (topographic) hands and a digital time in the centre; glucose line with value, trend arrow and delta. Colours: in range white with a green dot, high yellow, above 12 mmol/L orange, low red (xDrip high/low flags when present, otherwise 3.9 / 10 / 12 mmol/L).
• Stale data is never shown as fresh: hollow marker and struck-through value after 10 min, “—” after 30 min.
• Battery and HybridCharge as red-to-green arcs, steps as a ring toward your step goal, date window. Tap steps to open Activity, tap HC to open HybridCharge.
• Eight backgrounds in the watch-face editor (long press → edit); Topography by default.
• Always-on display: big outline time, the scale with marker and tail, and the glucose line.

Requires Watchdrip+ Service 2.1.0+ running on the watch (the classic WatchDrip+ mini-app file is read as a fallback). Units: mmol/L (mg/dL is converted). Tested on Amazfit Balance 3, Zepp OS 5.

Same family: Cobalt Drip Digital and Cobalt Drip Stack.

Source code (MIT): gitlab.com/domaroff/cobalt-drip-watchface