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Consisting of a thick, rubbery chest strap and tracker "bug" unit, the Under Armour Armour39 is no casual fitness gadget.
The Under Armour Armour39's strap is flat but as wide as ones you'll find on backpacks.
With yellow accents and gaudy paint job, the Under Armour Armour39 has a design aesthetic that's not for the timid.
The Under Armour Armour39's strap is large but surprisingly light and comfortable to wear.
The Armour39 bug tracker uses a watch battery that's replaceable, not rechargeable.