MIP or AMOLED

A transflective screen — MIP, memory-in-pixel — reflects ambient light. It has no backlight doing the work, so the more light falls on it, the better it reads. In direct sun it is at its best. It also costs almost nothing to leave on, because holding a pixel in place takes far less power than lighting it.

An AMOLED emits its own light. Every lit pixel draws current, which is why an always-on AMOLED is the biggest battery cost after the GPS chip. In exchange it is sharp, has real colour, and is genuinely legible in the dark without a torch.

The honest summary: if your longest days are your most important days, transflective removes a worry. If most of your running is an hour at a time and the watch is on your wrist the other twenty-three, AMOLED is the nicer object to own.

The cleanest comparison available is Garmin selling both in one case. At 47 mm the Solar version quotes 67 GPS hours and 21 everyday days; the AMOLED version of the same watch quotes 47 and 16. Same size, same features, same price bracket.

Whether that gap matters is entirely a question of your longest day — which is why battery claims is the guide to read next if this one has not settled it.

One practical note that decides it for some people: transflective screens are lower resolution, and maps are noticeably harder to read on them. If navigation is a reason you are buying, weigh that against the battery — which Garmin covers where the map line falls in that range.

Most people who agonise over this end up happy either way, which is itself useful information. The cases where it genuinely decides the purchase are narrow and worth naming, because if you are not in one of them you should choose on something else entirely.

• You race longer than the AMOLED battery comfortably covers. Then the screen has chosen for you.
• You run before dawn most days and resent lifting your wrist to read a dim panel. Then AMOLED is worth its battery.
• You want one watch for running and for the office. AMOLED looks like a watch; transflective looks like equipment.
• You travel with minimal luggage and hate carrying chargers. Transflective, comfortably.

Outside those four, the honest answer is that the screen is not your deciding factor and you should pick on battery, fit or price instead. The finder treats it as a slider for exactly that reason: a forced binary would overweight a preference most people hold weakly.

One last practical point. Screens are the part of a watch that dates fastest in how it *looks*, and the part that dates slowest in how it *works*. A five-year-old transflective display does its job exactly as well as it did new. A five-year-old AMOLED does too — it just sits next to brighter ones in the shop.