Comparison table - Key specifications

Technical sources: official autonomies Fenix ​​7 and Forerunner 955, waterproofing and definitions 5/10 ATM.

Water, tightness, "diving": let's be clear

The Forerunner 955 is given for 5 ATM: surface swimming, showers, wise snorkeling. The Fenix ​​7 rises to 10 ATM: more margin for lively water sports and repeated immersions. But-and it is non-negotiable-neither is a diving computer (no depth sensor, no scuba profiles). For the real dive, go to a dedicated range. Final point.

If your question is rather "screen and readability underwater/on a daily basis", you can also measure the interest of a more punchy display via compare readability 955 vs 965 and impact autonomy - basically, the amoled flats, but the trinque autonomy. It depends on your priorities.

What audience, for real?

Runners, trailers, triathletes → Forerunner 955

You plan at cardio; You follow acute/chronicle load, HRV, readiness, vo₂max, race power; You want the same trace even between buildings; You hunt the seconds. The 955 glue to the wrist and does not crush the gesture. It was made for that. Day after day, without getting down.

Adventurers, hikers, sailors → Fenix ​​7

You abuse the compass, the baro altimeter, maps, following. route. You knock the watch to a rock, she just scratches the telescope and leaves. You browse, you bivouac, you go on. Metal reassures, long autonomy too. And if you like to understand the family tree of Forerunner (to locate your 955), take a look at History Forerunner 945 955 965 explained clearly - just for the context, nothing more.

Boundary cases, honest arbitrations

• Marathon + Costaude Rando : 955 If the race prime, fenix 7 if the hike prevails. Simple.
• Fine wrist / long discomfort : The difference in mass ends up weighing. This is often underestimated.
• Always readable screen : both. The MIP remains unbeatable full sun. At night, the Fenix ​​7 has just a tool charm.
• Ocean-Friendly : 10 ATM useful for quick water sports. But no, not Scuba (voluntary rehearsal). 

Purchasing experience (without pipes)

Choose first The case : the 955 is forgotten and performed; The fenix 7 feels, protects, hard. Afterwards edition : If you want Multibande + 32 GB on Fenix ​​7, take Sapphire Solar (otherwise you will remain in classic "All Systems"). And if autonomy obsesses you, reread the official values ​​rather than on-said.

Bracelets: default silicone (it dries quickly, don't rub), nylon if you are looking for breathability under load (trail, heat). Cards: Download your area Before To leave, test a simple route, then a long. Finally, save your activity profiles and your fields-losing a badly configured data-field 5 minutes from departure is annoying.

Ultra-Clair Summary

• You run quickly and often : Forerunner 955. Light, sharp metrics, ready -to -use multiband.
• You go for a long time, hard : Fenix ​​7. Metal telescope, 10 ATM, more generous autonomy in pure GPS.
• Diving : neither. Surface yes, scuba no.
• Screen : MIP 1.3 ″ readable full sun on both.
• Storage : 955 = 32 GB; Fenix ​​7 = 16 GB (32 GB in Sapphire).
• Weight : ~ 52–53 g (955) vs ~ 79 g (F7). On Ultra, it matters.
• GPS : Multiconstellations on both; MULTIBANDE = 955 and F7 Sapphire.

If you still hesitate, start from concrete needs: load, land, exposure to water, comfort. The rest was only noise.