Having abandoned treadmill running in favour of the great outdoors it wasn’t long before I began to bemoan the loss of my preferred running watch the Garmin Forerunner 305. I long for pretty maps to illustrate my outdoor running routes and spur me on to explore my surroundings and for that you need GPS.
Fortunately for me I am spoilt, and my good lady wife didn’t listen to my moans for long before coming home with a beautiful orange gift – the Garmin Forerunner 310XT.
The Forerunner 310XT has been the long awaited upgrade to the Forerunner 305. The Forerunner 405 (reviewed here) let us down with it’s silly bevel features that went haywire at the first hint of moisture, so the Forerunner 310XT marks a back to basics approach, stick with the tried, tested and much loved functionality of the 305 but add the long called for water resistance that should mark this as the triathletes choice.
Not of course that I can call myself a triathlete having done only one sprint event about 3 whole years ago. I am occasionally known to dabble in open water swimming though, or at least I have done twice, but I don’t think one should limit oneself, who knows when I may decide to pull on the wetsuit and explore the local waterways.
So the biggest change between the Forerunner 305 and the Forerunner 310XT is that Garmin have made the 310XT waterproof and therefore suitable for the swim. Having looked into the watches swim capabilities though I think I understand why Garmin took their time to introduce the feature and make a truly triathlon oriented GPS watch.
If you wear the watch on your wrist, as most people do, the watch will be plunged under water with each stroke reducing and possibly even removing its connection with the satellites and the stroke action will have the wrist unit moving forwards and back and effectively mapping out a greater distance than the rest of your body. The result is a very messy GPS trail and a wildly overestimated swim distance. A firmware release has added open-swim functionality to the Forerunner 310XT which averages out the missed points and gives a smoother GPS and distance closer to the truth but still not what you could call accurate.
DC Rainmaker has written an excellent review of the Forerunner 310XT as it performs in open water and compared the results with that of the Forerunner 305 worn underneath the swim cap.
I recommend you check out his analysis if you intend to use the watch for swimming or triathlon. The point I’ve taken away is that the 310XT really needs to be worn under your swim cap if you want to be able to trust the data and get a pretty map. It doesn’t show any improvements over the Forerunner 305 which you can shove in a sandwich bag and also pop under your swim cap but I suppose it does offer some peace of mind in case you drop it and it gets waterlogged.
Another major change is related to battery life. You can now run or swim or bike for around 20 hours vs the 10 hrs quoted for the 305. This is great news for endurance athletes or indeed anyone who can’t be bothered to charge the unit after each use. I have noticed a reduction in the data recording options though and wonder if this has gone someway to improving the battery life. With the 305 you could select the data recording option to every second or every 4 seconds with the “Smart Recording” option. With the 310XT the option has gone and now you only have smart recording. This isn’t really a problem for me although I do notice the charted data is a little less granular than it was in the 305 and it’s always nice to have the choice.
As with the Forerunner 405, the 310Xt is ANT enabled which means you get the automatic upload of workout data using the ANT stick and it means that the watch is compatible with assorted ANT devices such as cycle power meters. I don’t have one of these but I’m sure if you did, you’d be very happy with the enhancement. If you want to use the watch as your main cycle computer it is worth investing in the optional quick release kit, which is relatively cheap.
I’ve paired my unit with the ANT footpod that came with my Garmin FR60 but you could also pair it with the Adidas footpod that comes with the miCoach if you happen to have one. You can set the 310XT to use the footpod for distance measurements if you are running inside or on a treadmill or leave it set on GPS in which case the footpod will be used to measure cadence only.
I’ve been using mine mostly on the run and have noticed a few other improvements:
Physically the wrist unit is smaller and sleeker and is of course orange. It picks up GPS signals very quickly and seems to hold onto them, so despite running in wooded areas I haven’t noticed any spurious results on my map output. The unit is easier to use with less delving into menu systems required. For example if I want to switch from bike to run I just press and hold the mode button for about 3 seconds and it pops up the option to select the sport.
The multisport function has been improved as well. You can set up in advance the different stages of your race eg. Swim, T1, Bike 1, T2, Run and then when you press the lap button it automatically moves you into the next sport mode.
As with the 405 you can change the pace of your Virtual Partner on the fly. Press the up or down for a second and then you can slow the little stick man down long enough for you to be able to overtake him. Perfect, but perhaps shouldn’t be used too often.
A number of features are common to both the 305 and 310XT but I’ve noticed improvements to the “Back to Start” and the alert features.
If you want alerts you can choose to have sound or vibration or both. The vibration is particularly strong and sends ripples up your arm to ensure you don’t miss your lap times or interval notifications.
The Back to Start feature is very useful if you run on unfamiliar routes. It effectively lays out a bread crumb trail for you to retrace your steps with. When I used it the other weekend, I was trying to get back to my car which was who knows where. I’d gone a little bit around the houses and didn’t want to literally retrace my steps so I ignored the first turn off and headed back to an earlier point in the route. I was impressed to note that the watch forgave me and soon started picking up its directional instructions, buzzing at me when it was time to left or right. I don’t remember this being a feature of the 305.
So here’s my assessment.
Pro’s and Con’s
1. Small, pretty and new
3. Longer battery life – 20 hrs vs 10 hrs
4. Better GPS reception
5. ANT enabled which allows for wireless syncing, footpod pairing and power sensor compatibility
6. Back to start routing available – Included with 305 but not 405
1. Not really a swim watch – it still needs to sit in the swim cap
2. A lot more expensive than the 305 which currently retails at amazon for less than £140: Garmin Forerunner 305 with Heart Rate Monitor
I’ve got a lot of pro’s there but then I like shiny new things and I didn’t have to pay for it. I have to say though that I am a bit disappointed about the swim functionality, I can see that it’s a tricky concept to engineer but I’m paying a lot for it over and above the price of the 305.
If you are a cyclist and want to use the power meter features then I think you would be happy with the 310XT, if you are a regular swimmer you may settle for the safety aspect of having a waterproof item even if you do have to wear it in your swim cap.
If you are a runner and don’t have need to record workouts in excess of 10 hours, I think you may want to take advantage of the reduction in price of the Forerunner 305 and spend the money you save on a swanky pair of Vibram Five Fingers or some such.
The Garmin Forerunner 310XT with Heart Rate Monitor currently retails at Amazon for just under £265.