Lidl had some a few weeks back, might still have some left.
£12.99.
Bit clunky to use, but records current, min, max, ave heart rate. Time in, below & above zone.
I'm not really sold on hrm's but got one because it was cheaper than replacing the strap on my timex ironman! Stopwatch does 99 laps as well.
As I said, a bit awkward, but works fine. Only other problem is the screen scratches easily. Can't complain at all for the price!