£199.50 Wor­thy up­grade to the al­ready im­pres­sive M400

220 Triathlon Magazine - - KIT ZONE -

We tested the M430’s pre­de­ces­sor, the M400, in the sum­mer and it scored im­pres­sively. The M430 comes with a few mod­est up­grades but is over £40 more ex­pen­sive. Part of that price in­crease comes down to a new six-LED op­ti­cal sen­sor, which is sim­i­lar to the one used on Polar’s M600. And like the M600, re­sults are rel­a­tively im­pres­sive, match­ing our bench­mark chest-strap model ac­cu­rately with the odd skew, prob­a­bly down to higher-in­ten­sity efforts; that said, read­ings were great on the bike. Like the M400, it’s not de­signed for the swim.

The other sig­nif­i­cant tweak is sleep track­ing. Like all the fea­tures on the M430, it’s easy to use and ac­cess the re­sults. Sim­ply keep it on at night and Blue­tooth trans­fer to the Polar Flow app on your phone or lap­top in the morn­ing to get a load of data, in­clud­ing sleep time, ac­tual sleep and in­ter­rup­tions. It’s a wor­thy per­for­mance up­grade, but ac­cu­racy’s hard to gauge and we have con­cerns un­less you’re tapped into an EEG head­set.

The bat­tery life’s greater than the M400, tick­ing off up to 30hrs with GPS on. Also im­pres­sive is the GPS, which con­nects and main­tains pickup. You can also down­load train­ing plans from the Flow site; con­nect to Train­ingPeaks and Strava; and mon­i­tor daily steps. The only moot points – the strap isn’t the most comfy and, at £200, it’s near full-on tri-spe­cific ter­ri­tory. JW polar.com

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