The "onlyTimer" you need

Interval training and plain countdowns. The remaining time fills the screen, and two rings show where you are — one for the current block, one for the whole session. SET UP A TIMER IN YOUR BROWSER https://novacat1973.github.io/onlyTimer/tools/onlyTimer-String-Builder.html Click blocks together, name them, set the seconds, pick a colour. Repeat groups are explicit, so a warm-up and cool-down run once no matter how many rounds you add. Press Generate string, then Copy: 1. Garmin Connect -- Connect IQ Apps -- onlyTimer -- Settings 2. Paste into "Timer config string" and save 3. Sync — the timer appears in the list on your watch Reusing a name replaces that timer. Separate several with a tilde. ON THE WATCH START/STOP start, or pause BACK/LAP first press resets, second exits UP (hold) open the timer list DOWN / UP skip to the next or previous block Pick a timer and it starts straight away. Quick timer sits at the top of the menu for a plain countdown in two presses. WHAT YOU SEE Large custom digits that grow once you are under a minute. Blue ring for the session, block-coloured ring for the current interval. Block name and round counter, e.g. WORK 3/8 — warm-up and cool-down never count as rounds. Session time left, heart rate, temperature, 24-hour clock. Heart rate and temperature switch on per timer. SOUND Mid beeps over the last three seconds of a block, then a high tone entering work or a low tone entering rest — so going hard rises and easing off falls. Every beep vibrates, and a per-timer option alerts you even when the watch is muted. RECORDING Optional per timer: saves a FIT activity with a lap at every block, so your splits match your intervals. Permissions: FIT for the activity file, sensor history for heart rate and temperature. Nothing leaves your watch.

--- Version 1.1.1 --- Did some small bugfixes and removed the unit from the temperature. --- Version 1.1.0 --- Added temperature next to heart rate. In the web configurator you can select this shall be shown. If only one is selected it will be centered. This might be interesting for Ice Bathing timers. Just configure a single block in the config string builder and you are ready to bath, keeping an eye on heart rate and water temperature. HAVE FUN.