Amazon - Smart Fitness Trackers
Found 365 items
- Specifications
- Brand: Apple
- Model: MWWQ3LW/A
- Product Dimensions: 24 x 7.7 x 3 inches
- Item Weight: 4.8 ounces
- Department: mens
- Manufacturer: Apple
- Country of Origin: China
- Item Model Number: MWWQ3LW/A
- Batteries: 1 Lithium Ion batteries required. (included)
- Date First Available: September 9, 2024
- Specifications
- Brand: Apple
- Model: MWWH3LW/A
- Product Dimensions: 24 x 7.7 x 3 inches
- Item Weight: 4.8 ounces
- Department: mens
- Manufacturer: Apple
- Country of Origin: China
- Item Model Number: MWWH3LW/A
- Batteries: 1 Lithium Ion batteries required. (included)
- Date First Available: September 9, 2024
- Specifications
- Brand: aabo
- Model: ABRING8G
- product_dimensions: 2.72 x 4.17 x 4.17 inches
- item_weight: 200 Grams
- batteries: 1 AA batteries required. (included)
- memory_storage_capacity: 4 MB
- water_resistance: IP68 up to 50 meters
- battery_life: 4 to 7 days
- charging_time: 60 to 80 minutes
- Specifications
- Brand: Garmin
- Model: 010-02862-10
- Product Dimensions: 1.7 x 1.7 x 0.43 inches
- Item Weight: 1.3 ounces
- Batteries: 1 C batteries required. (included)
- Operating System: Android & iOS
- Wireless Communication Technologies: Bluetooth, Wi-Fi
- GPS: Built-in GPS
- Display Technology: AMOLED
- Display Resolution: 390 x 390
- Memory Storage Capacity: 4 GB
- Specifications
- Brand: Fempoin
- Model: T10 Pro
- Display Size: 40 Millimeters
- Waterproof Rating: IP68
- Battery Capacity: 300 mAh
- Compatibility: iOS 9.0 or above, Android 6.0 or above
- Package Dimensions: 10.91 x 3.39 x 0.75 inches
- Item Weight: 3.84 ounces
- Specifications
- Brand: Fitbit
- Model: FB521GLBM-US
- Product Dimensions: 1.57 x 0.47 x 1.57 inches; 1.3 ounces
- Batteries: 1 Lithium Ion batteries required. (included)
- Date First Available: September 23, 2022
- Manufacturer: Fitbit Inc
- Country of Origin: China
- Specifications
- Brand: Oura
- Model: JZ90-1003-08
- Product Dimensions: 0.91 x 0.91 x 0.28 inches
- Item Weight: 8 ounces
- Batteries: 1 Lithium Ion batteries required. (included)
- Customer Reviews: 3260 ratings, 4.3 stars
- Other Display Features: Wireless
- What's in the Box: Oura Ring, Charger, USB Cable, Information Booklet, Quick Start Guide
- Department: unisex-adult
- Manufacturer: Oura
- Country of Origin: Estonia
- Date First Available: January 19, 2024
- Specifications
- Brand: Fitbit
- Model: Versa 4
- Product Dimensions: 1.57 x 0.43 x 1.57 inches
- Item Weight: 6.3 ounces
- Batteries: 1 Lithium Ion batteries required.
- Wireless Communication Technologies: Bluetooth
- GPS: Built-in GPS
- Special Features: Activity Tracker, GPS, Heart Rate Monitor, Sleep Monitor, Daily Workout Memory, Water Resistant, Alarm Clock, Bluetooth, Text Messaging, Phone Call
- Color: Black/Graphite
- What's in the Box: Fitbit Versa 4 Fitness Smartwatch, S & L Bands, Charger
- Standing Screen Display Size: 1.58 Inches
- Memory Storage Capacity: 4 GB
- Specifications
- Brand: Apple
- Model: MXEF3LL/A
- Product Dimensions: 24 x 7.7 x 3 inches
- Item Weight: 4.3 ounces
- Manufacturer: Apple
- Country of Origin: China
- Batteries: 1 Lithium Ion batteries required. (included)
- Date First Available: September 11, 2024
Wrist & Arm Wearables
RENPHO Smart Ring Comprehensive health and fitness tracking
$179.00
$219.00
- Specifications
- Brand: RENPHO
- Model: Smart Ring
- Battery Life: 7 days
- Waterproof: 5ATM
- Material: Titanium
- Compatibility: iOS, Android, Apple Health, Google Health Connect
- Health Tracking: Sleep, Blood Oxygen Levels, Stress, Heart Rate, Steps, Distance, Calories Burned
- Specifications
- Brand: Motast
- Model: 2025
- Display Size: 1.96 Inches
- Battery Life: 7 days normal usage, 30 days standby
- Waterproof Rating: IP68
- Compatibility: Android 6.0+, iOS 10.0+
- Sports Modes: 110+
- Package Dimensions: 6.5 x 3.7 x 0.75 inches
- Item Weight: 3.2 ounces
- Batteries: 1 A batteries required. (included)
- Customer Reviews: 4.8 stars from 564 reviews
- Date First Available: February 14, 2025
- Manufacturer: Motast
- Country of Origin: China
- Specifications
- Brand: Csasan
- Model: T70
- Product Dimensions: 3.72 x 0.79 x 6.89 inches
- Item Weight: 3.52 ounces
- Batteries: 1 Lithium Polymer batteries required. (included)
- Standing Screen Display Size: 1.91 Inches
- Country of Origin: China
- Specifications
- Brand: uaue
- Model: T60-New
- Display: 1.91 Inches, 200+ Customized Dial
- Bluetooth: 5.4
- Health Monitoring: Heart Rate, Sleep Monitor, Menstrual Cycle
- Sports Modes: 112+
- Waterproof: IP68
- Battery Life: 30 Days Standby, 5-7 Days Daily Use
- Compatibility: iOS 9.0+, Android 4.0+
- Dimensions: 6.85 x 3.74 x 0.75 inches
- Weight: 40 Grams
- Specifications
- Brand: Rogbid
- Compatibility: Android 9.0, iOS 10.0+, HarmonyOS
- Battery Life: 7-10 days, Portable charging case with 480mAh battery
- Waterproof Rating: IP69, Up to 100m
- Material: Titanium
- Health Monitoring: Heart rate, Blood oxygen, Blood pressure, Sleep quality
- Sports Modes: Running, Cycling, Ropeskipping, Walking, Mountaineering, Yoga, Golf, Dancing
- Specifications
- Brand: Hwagol
- Screen Size: 1.52 inches
- Battery Capacity: 500mAh
- Compatibility: Android, iPhone
- Water Resistance: Yes
- Health Monitoring: Heart Rate, Blood Oxygen, Sleep
- Specifications
- Brand: Haulvean
- package_dimensions: 6.61 x 4.29 x 0.94 inches
- item_weight: 6.7 ounces
- batteries: 1 AAA batteries required. (included)
- standing_screen_display_size: 1.85 Inches
- country_of_origin: China
- Specifications
- Brand: Sanorum
- Model: G53
- Package Dimensions: 10.98 x 3.58 x 0.75 inches
- Item Weight: 3.84 ounces
- Batteries: 1 Lithium Polymer batteries required. (included)
- Customer Reviews: 4.3 stars, 99 ratings
- Date First Available: September 2, 2024
- Manufacturer: SANORUM
- Country of Origin: China
- Standing Screen Display Size: 1.27 Inches
- Memory Storage Capacity: 128 MB
- Specifications
- Brand: Dkeof
- Model: R11M
- package_dimensions: 3.95 x 3.54 x 1.38 inches
- item_weight: 3.53 ounces
- batteries: 1 9V batteries required. (included)
- date_first_available: April 17, 2025
- country_of_origin: China
- Specifications
- Brand: Kimeag
- Model: H31
- Package Dimensions: 11.42 x 3.54 x 0.75 inches
- Item Weight: 5 ounces
- Batteries: 1 Lithium Polymer batteries required. (included)
- OS: Android and ios
- Wireless Communication Technologies: Bluetooth
- GPS: GPS Via Smartphone
- Human Interface Input: Touchscreen, Dial
- Whats in the Box: Two watch bands
- Standing Screen Display Size: 1.91 Inches
Wrist & Arm Wearables
Shenzhen Buzz Tech CO.,LTD P110 Heart rate and blood oxygen monitor
$69.99
- Specifications
- Brand: Shenzhen Buzz Tech CO.,LTD
- Model: P110
- Display: 2.06 Inches, AMOLED, Touchscreen
- Connectivity: Bluetooth
- Waterproof: IP68
- Battery: Lithium Polymer, Included
- Special Features: Fitness Tracker, Phone Call, Sleep Monitor, Blood Oxygen Monitor, Heart Rate Monitor, Calorie Tracker, Alarm Clock, Stopwatch, Timer, Pedometer, Camera Control, Music Playback/Control, Sedentary Reminder, Weather, Notifications
- Compatibility: Android, iPhone, Samsung
- Specifications
- Brand: Hingso
- Model: IDW19
- Package Dimensions: 10.79 x 3.5 x 0.75 inches
- Item Weight: 3.52 ounces
- Batteries: 1 Lithium Polymer batteries required. (included)
- Customer Reviews: 4.4 stars (201 ratings)
- Date First Available: November 6, 2024
- Manufacturer: Hingso
- Country of Origin: China
- Standing Screen Display Size: 1.8 Inches
Wrist & Arm Wearables
Huizhou JTLlink Technology Co., Ltd R11M Advanced health monitoring
$65.99
- Specifications
- Brand: Huizhou JTLlink Technology Co., Ltd
- Model: R11M
- package_dimensions: 3.03 x 2.91 x 1.73 inches
- item_weight: 3.52 ounces
- batteries: 1 9V batteries required. (included)
- memory_storage_capacity: 64 MB
- waterproof: IP68
- Specifications
- Brand: Mefoma
- package_dimensions: 3 x 3 x 1.8 inches
- item_weight: 3.2 ounces
- batteries: 1 CR5 batteries required. (included)
- os: Android 5.0 and above / iOS 10.0 or later
- gps: No GPS
- special_features: Gesture Control, Lightweight, Activity Tracker
- other_display_features: Wireless
- manufacturer: Mefoma
- country_of_origin: China
- date_first_available: February 9, 2025
- Specifications
- Brand: MSDQQTIY
- Model: JZ5.0
- Chip: JZ5.0
- Waterproof: IP68, 50 meters
- Material: Military-grade titanium
- Battery Life: 10 days, 300mAh
- Compatibility: Android, IOS
- Specifications
- Brand: Mefoma
- Model: 717097751080
- Package Dimensions: 3.2 x 3.2 x 1.2 inches
- Item Weight: 3.2 ounces
- Batteries: 1 CR5 batteries required. (included)
- Customer Reviews: 3.7 stars (29 ratings)
- Date First Available: January 16, 2025
- Manufacturer: Mefoma
- Country of Origin: China
- Standing Screen Display Size: 0.5 Centimeters
- Specifications
- Brand: Mefoma
- Model: 2025
- Package Dimensions: 2.99 x 2.99 x 1.81 inches
- Item Weight: 3.52 ounces
- Batteries: 1 CR5 batteries required. (included)
- OS: Android 5.0 and above / iOS 10.0 or later
- GPS: No GPS
- Special Features: Gesture Control, Lightweight, Activity Tracker
- Other Display Features: Wireless
- Manufacturer: Mefoma
- Country of Origin: China
- Date First Available: January 27, 2025
- Specifications
- Brand: Fitpolo
- Model: IDW13
- Display: 1.8 Inches, HD-LCD full touch screen, Panda glass protection
- Compatibility: Android 6.0 or above, iOS 9.0 or above
- Battery: 300 Milliamp Hours, Up to 7 days typical use, 30 days standby
- Waterproof: IP68
- Special Features: Alexa Built-in, Bluetooth Call Make/Answer, Heart Rate/SpO2/Sleep/Stress Monitor, 105+ Sports Modes
Wrist & Arm Wearables
Dongguan Jiajin Electronic Technology Co., Ltd SR08 All-Day Health Monitor
$58.99
- Specifications
- Brand: Dongguan Jiajin Electronic Technology Co., Ltd
- Model: SR08
- Package Dimensions: 3.15 x 3.15 x 1.07 inches
- Item Weight: 3.39 ounces
- Batteries: 1 Lithium Ion batteries required. (included)
- Country of Origin: China
- Specifications
- Brand: CMF BY NOTHING
- Model: CMF Watch Pro 2
- Product Dimensions: 1.97 x 1.18 x 0.2 inches
- Item Weight: 48 Grams
- Batteries: 1 9V batteries required.
- Customer Reviews: 4.2 stars (635 ratings)
- Date First Available: June 25, 2024
- Department: mens
- Manufacturer: CMF BY NOTHING
- Country of Origin: China
- Standing Screen Display Size: 1.32 Inches
- Specifications
- Brand: SUNKTA
- Model: A230+
- Product Dimensions: 8.66 x 1.81 x 0.51 inches
- Item Weight: 100 Grams
- Batteries: 1 C batteries required. (included)
- Standing Screen Display Size: 1.39 Inches
- Memory Storage Capacity: 128 MB
- RAM Memory Installed Size: 128 MB
- Country of Origin: China
- Date First Available: March 17, 2023
- Specifications
- Brand: FFFITNES
- Model: R6
- product_dimensions: 10.24 x 3.15 x 0.67 inches
- item_weight: 2.68 ounces
- batteries: 1 AAA batteries required. (included)
- os: Android&iOS
- wireless_communication_technologies: Bluetooth
- connectivity_technologies: Bluetooth
- gps: GPS Via Smartphone
- special_features: Step Counter, Blood Pressure Monitor, Calorie Consumption, Music/Camera Control, Activity Tracker, Gesture Control, Heart Rate Monitor, Sleep Tracker
- other_display_features: Wireless
- human_interface_input: Touchscreen
- battery_power_rating: 18 Milliamp Hours
- whats_in_the_box: Smart Ring, Charging Cable & Manual
- manufacturer: FFFITNES
- country_of_origin: China
- date_first_available: April 21, 2025
- weight: 76 Grams
- standing_screen_display_size: 10
- memory_storage_capacity: 64 MB
- ram_memory_installed_size: 64 MB
- Specifications
- Brand: Weyrinice
- Model: 753829646767
- Package Dimensions: 4.09 x 3.11 x 1.26 inches
- Item Weight: 3.17 ounces
- Batteries: 1 A batteries required. (included)
- Customer Reviews: 4.3 stars (20 ratings)
- Date First Available: November 25, 2024
- Country of Origin: China
- Standing Screen Display Size: 0.1 Inches
- Memory Storage Capacity: 128 MB
- Specifications
- Brand: DEKELIFE
- Model: 43mt
- Package Dimensions: 8.66 x 3.74 x 0.75 inches
- Item Weight: 61.7 Grams
- Batteries: 1 Lithium Polymer batteries required. (included)
- Standing Screen Display Size: 2.02 Inches
- Memory Storage Capacity: 128 MB
- RAM Memory Installed Size: 128 MB
- Country of Origin: China
- Specifications
- Brand: Mindrose
- Display: 1.47" HD color, full touch screen
- Health Monitoring: Heart rate, Blood oxygen, Blood pressure, Sleep tracker
- Sports Modes: 115 modes
- Battery Life: 7 days heavy use, 10 days daily use, 30 days standby
- Waterproof: IP68
- Compatibility: Android 4.4 / iOS 8.4 or above
- Specifications
- Brand: spywkn
- Sensors: Heart rate, SpO2, Blood pressure
- Battery Life: 3-5 days per full charge, 400mAh battery provides 15 recharges
- Compatibility: iOS, Android
- Waterproof: Yes
- Specifications
- Brand: Hivisuals
- Model: sr08
- package_dimensions: 3.15 x 3.15 x 1.06 inches
- item_weight: 3.52 ounces
- batteries: 1 Nonstandard Battery batteries required. (included)
- standing_screen_display_size: 1 Centimeters
- memory_storage_capacity: 10 MB
- country_of_origin: China
- Specifications
- Brand: Hugrow
- Model: KR2
- Package Dimensions: 3.94 x 3.54 x 1.77 inches
- Item Weight: 4.2 ounces
- Batteries: 1 Nonstandard Battery batteries required. (included)
- Country of Origin: China
- Specifications
- Brand: TOOBUR
- Model: IDW20
- Product Dimensions: 9.45 x 1.38 x 0.39 inches
- Item Weight: 1.32 Ounces
- Batteries: 1 Lithium Ion batteries required. (included)
- Standing Screen Display Size: 1.91 Inches
- Country of Origin: China
- Date First Available: September 15, 2024
- Specifications
- Brand: Ysyess
- Package Dimensions: 3.2 x 3.2 x 1 inches
- Item Weight: 2.39 ounces
- Batteries: 1 Nonstandard Battery batteries required. (included)
- Customer Reviews: 5 stars, 5 ratings count
- Date First Available: March 11, 2025
- Manufacturer: Ysyess
- Country of Origin: China
- Specifications
- Brand: Meewtun
- Model: R8
- Package Dimensions: 3.04 x 2.99 x 1.81 inches
- Item Weight: 3.85 Ounces
- Batteries: 1 9V batteries required. (included)
- Memory Storage Capacity: 64 MB
- Country of Origin: China
- Specifications
- Brand: Parsonver
- Model: SR1
- Product Dimensions: 10.24 x 1.77 x 0.41 inches
- Item Weight: 40 Grams
- Batteries: 1 Lithium Polymer batteries required. (included)
- Standing Screen Display Size: 1.32 Inches
- Memory Storage Capacity: 512 MB
- Waterproof Rating: IP68
- Specifications
- Brand: Jawploy
- Model: PX02
- Package Dimensions: 3.54 x 3.23 x 1.14 inches
- Item Weight: 3.17 ounces
- Batteries: 1 CR5 batteries required.
- Customer Reviews: 4.7 stars from 67 ratings
- Date First Available: January 8, 2025
- RAM Memory Installed Size: 96 KB
- Waterproof: 5ATM
- Material Process: Titanium alloy tenpouring glue technology
- Weight: 4.5g
- Operating Temperature Range: 0-50℃
- Charging Time: Two hours for case, 30min for ring
- Standby Time: 10-15 days(30+days when used in conjunction with charging case)
- Normal Using Time: 7-9 days
- Specifications
- Brand: TOOBUR
- Model: IDW16
- Product Dimensions: 10.24 x 1.5 x 0.75 inches
- Item Weight: 3.53 ounces
- Batteries: 1 Lithium Metal batteries required. (included)
- Standing Screen Display Size: 1.95 Inches
- Country of Origin: China
- Customer Reviews: 4.2 stars from 7312 ratings
- Date First Available: May 6, 2023
- Specifications
- Brand: UniJethro
- Waterproof Rating: IP68
- Battery Life: 5-7 days
- Charging Case Capacity: 300mAh
- Functions: Heart rate monitoring, Blood oxygen saturation, Sleep analysis, Activity tracking, Remote photography
- Specifications
- Brand: Atheewon
- Model: S10
- Display Size: 1.39 Inches
- Waterproof Rating: IP68
- Battery Life: 7-30 days
- Compatibility: iOS 9.0+, Android 5.0+
- Sports Modes: 110+
- Specifications
- Brand: Puqo
- Model: T80
- package_dimensions: 6.81 x 3.74 x 0.75 inches
- item_weight: 3.2 ounces
- batteries: 1 C batteries required. (included)
- customer_reviews: 969 ratings, 4.5 stars
- date_first_available: February 6, 2025
- manufacturer: Puqo
- country_of_origin: China
- standing_screen_display_size: 1.95 Inches
- Specifications
- Brand: RUIMEN
- Model: D1
- Screen Size: 1.85 inches
- Waterproof Rating: IP68
- Bluetooth Version: 5.2
- Sports Modes: 100+
- Compatibility: iPhone, Android Phones
- Specifications
- Brand: QONBINK
- Model: L70
- Package Dimensions: 6.5 x 3.39 x 0.79 inches
- Item Weight: 3.2 ounces
- Batteries: 1 A batteries required. (included)
- Customer Reviews: 4.4 stars from 465 ratings
- Date First Available: May 27, 2024
- Standing Screen Display Size: 1.85 Inches
- Memory Storage Capacity: 128 MB
- RAM Memory Installed Size: 128 MB
- Specifications
- Brand: GRV
- Model: FC1
- Product Dimensions: 9.84 x 1.38 x 0.67 inches
- Item Weight: 1.2 ounces
- Batteries: 1 Lithium Metal batteries required. (included)
- OS: Compatible with iOS and android smartphones
- Connectivity Technologies: Bluetooth
- Special Features: fitness tracker
- Human Interface Input: Touchscreen
- Standing Screen Display Size: 1.83 Inches
- Memory Storage Capacity: 128 MB
- RAM Memory Installed Size: 128 MB
- Specifications
- Brand: Sanorum
- Model: G56
- Product Dimensions: 9.84 x 1.57 x 0.31 inches
- Item Weight: 4.2 ounces
- Batteries: 1 Lithium Polymer batteries required. (included)
- Standing Screen Display Size: 1.83 Inches
- Memory Storage Capacity: 128 MB
- Customer Reviews: 4.4 stars from 1846 ratings
- Date First Available: October 8, 2024
- Specifications
- Brand: LODIMEKE
- Model: IDW26
- Display Size: 1.83 Inches
- Waterproof Rating: IP68
- Memory Storage Capacity: 128 MB
- Battery Life: Up to 7 days, Up to 30 days on standby
- Compatibility: Android 6.0+, iOS 9.0+
- Weight: 80.9 Grams
- Specifications
- Brand: DEKELIFE
- Model: 8317ab38-f9e8-432c-891c-3c0652f8e906
- Package Dimensions: 8.54 x 3.74 x 0.75 inches
- Item Weight: 61 Grams
- Batteries: 1 Lithium Polymer batteries required. (included)
- Standing Screen Display Size: 1.52 Inches
- Memory Storage Capacity: 128 MB
- Country of Origin: China
- Specifications
- Brand: Jugeman
- Model: P99
- package_dimensions: 6.42 x 3.74 x 0.67 inches
- item_weight: 3.2 ounces
- batteries: 1 A batteries required. (included)
- standing_screen_display_size: 1.96 Inches
- memory_storage_capacity: 1 GB
- country_of_origin: China
- Specifications
- Brand: JeeJTek
- Model: TGW008
- Product Dimensions: 10.28 x 1.85 x 0.47 inches
- Item Weight: 3.52 ounces
- Batteries: 1 Lithium Polymer batteries required. (included)
- Standing Screen Display Size: 1.28 Inches
- Memory Storage Capacity: 128 MB
- RAM Memory Installed Size: 892 KB
- Country of Origin: China
- Specifications
- Brand: Coucur
- Model: Y66
- Display Size: 1.96 Inches
- Memory Storage Capacity: 300 MB
- RAM Memory Installed Size: 300 MB
- Waterproof Rating: IP68
- Battery Life: Up to 7 days
- Compatibility: Android, iOS
- Sports Modes: 110+
- Package Dimensions: 6.77 x 3.31 x 0.75 inches
- Item Weight: 3.2 ounces
- Specifications
- Brand: Puqo
- Model: T80
- package_dimensions: 6.85 x 3.74 x 0.75 inches
- item_weight: 1.44 ounces
- batteries: 1 C batteries required. (included)
- customer_reviews: 4.5 stars from 969 ratings
- date_first_available: February 6, 2025
- country_of_origin: China
- standing_screen_display_size: 1.95 Inches
- Specifications
- Brand: Fempoin
- Model: T31
- Package Dimensions: 6.85 x 3.62 x 0.83 inches
- Item Weight: 3.84 ounces
- Batteries: 1 A batteries required.
- Customer Reviews: 768 ratings, 4.8 stars
- Date First Available: February 25, 2025
- Standing Screen Display Size: 1.47 Inches
- Specifications
- Brand: TORJALPH
- Model: b1dea5ca-a205-4181-af0f-6ad06b94ae05
- Product Dimensions: 10.06 x 1.77 x 0.41 inches
- Item Weight: 0.09 Pounds
- Batteries: 1 C batteries required.
- Standing Screen Display Size: 1.69 Inches
- Compatible System: Android 5.0+, iOS 9.0+
- Specifications
- Brand: BP Doctor
- Model: P122
- Package Dimensions: 10.67 x 3.43 x 0.71 inches
- Item Weight: 3.84 ounces
- Batteries: 1 Lithium Polymer batteries required. (included)
- Customer Reviews: 4.5 stars (166 ratings)
- Date First Available: September 18, 2024
- Manufacturer: BP Doctor
- Country of Origin: China
- Standing Screen Display Size: 2.1 Inches
- Memory Storage Capacity: 1 GB
- Specifications
- Brand: Jawploy
- Waterproof: 5ATM
- Material: Titanium alloy tenpouring glue technology
- Weight: 4.5g
- MobileAPP-GPS: Yes
- Memory: 128kb ROM + 96 Kb RAM
- Operating temperature range: 0-50℃
- Charging time: Two hours for case, 30min for ring
- Standby time: 10-15 days (30+days with charging case)
- Normal using time: 7-9 days