View on Amazon

B07PVDBN57
Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 1.63 x 4.04 x 8.9 inches; 10.58 ounces
Item model number ‏ : ‎ FB409GMBK
Department ‏ : ‎ unisex-adult
Batteries ‏ : ‎ 1 A batteries required.
Date First Available ‏ : ‎ March 20, 2019
Manufacturer ‏ : ‎ Fitbit
ASIN ‏ : ‎ B07PVDBN57
Best Sellers Rank: #1,094 in Amazon Renewed (See Top 100 in Amazon Renewed) #37 in Renewed Home Entertainment #91 in Renewed Smartwatches #190 in Activity & Fitness Trackers
Customer Reviews: 3.8 3.8 out of 5 stars 914 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Better measure calorie burn, understand resting heart rate & more with 24/7 heart rate tracking and a battery life of up to 7 days (varies with use and other factors)