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Shop the best prices on 13,547 great value activity monitors. Shopping for activity monitors is easy with Fruugo, with SALE discounts, offers and savings on Apple, Reflex Active, Viewleaf and more. Buy activity monitors online safely with Fruugo, with secure payment and fast shipping to Japan.

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1 - 32 of 3,200
Polar Heart Rate Monitor Watch - Waterproof Fitness Sport Running HRM with Wireless Pulse Sensor
¥4,699 Save ¥3,491 RRP: ¥8,190
​Polar H10 Chest Strap Heart Rate Monitor With ANT+ Bluetooth Connectivity Accurate Fitness Tracking For Sports Performance​
¥6,190 Save ¥3,700 RRP: ¥9,890
Polar Heart Rate Monitor Watch - Waterproof Fitness Sport Running HRM with Wireless Pulse Sensor_tuks
¥5,790 Save ¥3,400 RRP: ¥9,190
Pedometer Seniors Step Counter for Walking Electronic Accurate Step Tracker for Walking Running DS
¥1,249 Save ¥550 RRP: ¥1,799
Waterproof Pulse Wireless Polar Heart Rate Monitor Watch Digital Cardio Sensor Fitness Sport Running
¥4,049
Polar Heart Rate Monitor Watch - Waterproof Fitness Sport Running HRM with Wireless Pulse Sensor_uisad
¥5,490 Save ¥3,300 RRP: ¥8,790
Polar Heart Rate Monitor Watch - Waterproof Fitness Sport Running HRM with Wireless Pulse Sensor_qlsg
¥5,490 Save ¥3,300 RRP: ¥8,790
119S Smartwatch with Heart Rate and Blood Pressure Monitor, IP67 Waterproof Fitness Tracker for Android and iOS
¥2,399 Save ¥1,200 RRP: ¥3,599
Polar Style Heart Rate Watch Cardio Fitness Digital 53khz Sports Wristwatches Running Cycling Heart Rate Monitor Chest Strap
¥8,390
2208A Smart Bracelet Heart Rate Blood Pressure Monitor Pedometer Sport Fitness Tracker Black Gray
¥5,249 Save ¥2,341 RRP: ¥7,590
Smartwatch for Xiaomi Android Phones with Bluetooth Calling, Blood Pressure & Heart Rate Monitoring for Women
¥5,249 Save ¥5,841 RRP: ¥11,090
CR-812 3D Pedometer Mini Walking Pedometer With Clip For Accurate Step Counting
¥4,149 Save ¥2,141 RRP: ¥6,290
Polar Heart Rate Monitor Chest Strap - Waterproof Wireless HRM Sensor for Fitness Running & Cardio Training (FM18 Model)
¥6,790 Save ¥9,600 RRP: ¥16,390
F57l Blood Glucose Monitoring Smartwatch Fitness Tracker With Blood Pressure Smart Watch For Men Women Health Tracking-wwxb
¥6,890 Save ¥3,200 RRP: ¥10,090
Polar Heart Rate Monitor Watch-Waterproof Fitness Sport Running HRM with Wireless Pulse Sensor_1t1g
¥4,449 Save ¥3,541 RRP: ¥7,990
Smart Ring with Heart Rate, Stress and Sleep Tracking, Waterproof Titanium Fitness Ring for iPhone and Android, Silver Size 9
¥22,590 Save ¥11,300 RRP: ¥33,890
P1 Smart Ring for Women and Men, 24/7 Health Monitoring, Sleep Tracking, 6Day Battery, Waterproof Titanium, Silver Size 7
¥3,999 Save ¥1,991 RRP: ¥5,990
Heart Rate Monitor Chest Strap Replacement Band For Myzone
¥2,949 Save ¥17,241 RRP: ¥20,190
No App Fitness Tracker Watch with Accurate Step Tracking, Waterproof Pedometer and Vibration Alarm
¥5,390 Save ¥2,700 RRP: ¥8,090
2025 Samsung Galaxy Smart Ring - Heart Rate and Blood Oxygen Monitor with IP68 Waterproof for Sports
¥9,090 Save ¥2,300 RRP: ¥11,390
Polar Style Heart Rate Watch Cardio Fitness Digital 53khz Sports Wristwatches Running Cycling Heart Rate Monitor Chest Strap_CP
¥6,890 Save ¥13,900 RRP: ¥20,790
Smart Fitness Tracker with Heart Rate Monitor, Sleep Tracking, Calorie Counter, IP68 Waterproof for Women, Gold
¥8,090 Save ¥4,000 RRP: ¥12,090
Fitness Tracker with Heart Rate and Sleep Tracking, AMOLED Waterproof Smart Watch 7Day Battery for Men Women, Knitting Black
¥5,690 Save ¥2,800 RRP: ¥8,490
3D Quality Walking 3D Pedometer by Realalt with Clip
¥2,799 Save ¥1,150 RRP: ¥3,949
Advanced GPS Heart Rate Tracker - Multi-Sport Activity Band for Fitness & Wellness
¥7,890 Save ¥6,400 RRP: ¥14,290
Smart Ring for Fitness Tracker with Heart Rate/Blood Oxygen/Blood/Pressure/Sleep/Pedometer Monitor
¥3,499 Save ¥900 RRP: ¥4,399
Polar Heart Rate Monitor Watch Waterproof Fitness Sport Running Hrm Wireless Pulse Sensor for Fitness Tracking-sjy3
¥4,799 Save ¥3,291 RRP: ¥8,090
Waterproof Heart Rate Monitor Watch - Wireless Chest Strap HRM for Running/Fitness Tracking
¥5,690
Polar H10 H9 H7 HRM Chest Strap Replacement, Sunset Chevron Orange/Red
¥4,299 Save ¥2,091 RRP: ¥6,390
Electronic Pedometer Elderly Running Pedometer
¥1,449
Denver BFH-153 Activity Bracelet - Black Black
¥4,149 Save ¥2,541 RRP: ¥6,690
Smart Health Ring with Heart Rate, Blood Oxygen, HRV and Sleep Tracking, IP68, Rose Gold Size 7
¥4,749 Save ¥2,441 RRP: ¥7,190