It crossed my mind once I'd posted the Walkmeter vs Satmap Active 10 review that I had omitted something which was quite crucial. It is with reference to the Satmap Active 10, the Walkmeter review I feel is fair and true to the best of my knowledge.
The Satmap Active 10 however is inaccurate as an out of the box unit. Unfortunately at the outset I found the battery life to be substandard and was only really of use to record/log routes as any attempt to use it as a navigation tool drained the batteries like the fury. Obviously it was great to record certain routes in the wilderness as running on satellite the Satmap Active 10 was never out of service however the Walkmeter did suffer from this being reliant on it's mobile phone carrier signal.
The cure was to buy the rechargeable battery for the Satmap Active 10 which makes it an awesome piece of kit and can thunder on all day long on a lengthy one day hike.