One for the Ultra-Runners...

[AWG]

I have my first ultra this weekend. 70 miles, have no idea of time but will be allowing for 15 hrs tops.

My question is what watch do you guys/ladies use that has the battery life to last this time. Neither of my watches (TomTom Spark/Samsung S3 Frontier) appear to be getting me past 12 hours. Too late for this event but will be looking to upgrade after.
I am happy to charge on the fly if need be, obviously not ideal but there may come a time where I do 100+ miles and will no doubt have no choice. I would also prefer a waterproof unit that can be used for swimming which is another thing my S3 flops at.

I had thought about popping this in the watch section but thought i'd get better feedback here.

Thanks of your time.
Andy

[anonymous-user]

My garmin 910xt lasts long enough for ironman and ultras. I think quoted time is 17/20 hours but nearer 20 when new. It might be tight if you’re going for 17.

[jeremyc]

Firstly I'm not an ultra runner, but a number of the Garmin Forerunner and Fenix fitness watches advertise 24 hour battery life in GPS/wrist HRM mode (longer in other modes like UltraTrac that gives 60 hours). They're waterproof as well.

https://buy.garmin.com/en-GB/GB/p/552982



https://buy.garmin.com/en-GB/GB/p/564291

[WestyCarl]

I use a Garmin Fenix 3. (the later 5 in my opinion isn't really an improvement). In ultra track it' gives over 24hrs recording.

I've had it for about 3yrs and despite being bashed around still works perfectly.

[AWG]

The Fenix 3 is definitely a contentder, does anyone use Suunto?