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Kingwear KR04 Smartband + Earphone – Specs Review

Kingwear KR04 Smartband + Earphone – Specs Review
Brand: KingWear
Category: Smartband
  • Processor: nRF52832
  • Operating System: Proprietary OS
  • Display: 0.96" inch IPS LCD
  • RAM: 512 KB + 64 KB
  • Battery: 100 mAh Lithium Polymer Battery Standby Time: 7 days
  • Sensors: Triaxial sensor

Kingwear KR04 Smartband + Earphone –Specs Review


Here is another dual purpose design smartband, a fitness tracker and a Bluetooth earphone in one, check out the Kingwear KR04 smartband by Kingwear. The wearable weighing 250 grams and with 63.2 x 24.3 x 14 mm body, the smartband has that typical smartband look. An aluminium frame and a sporty silicon strap.

Kingwear KR04 Smartband

To use it as an earphone, the body is removable and it pops-up exposing the body that work as an earphone. The band has a small push button that lock and unlock the body of the Kingwear KR04 smartband. It has an IP68 waterproof and dustproof rating available in black and silver colors.


The smartband Kingwear KR04 has a 0.96” inch display and with resolution 80 x 160 . It has a sharp, clear color display with touch button key method of operation. The screen is also unique having a stylish design, slightly 3D curve screen.

Under the Hood

The wearable is powered by NRF52832 processor + CSR8610 with 512 of ROM and with 64 KB of RAM. Its Bluetooth connectivity is 4.0 for the band and 3.0 for its earphone mode. Despite having an earphone feature, the band has a heart rate monitor, blood pressure monitor as well as blood oxygen monitor. It is compatible with  Android 4.4 and above or iO 9.0 and above.


The Kingwear KR04 smartband has 100 mAh Lithium Polymer battery with several days of standby time.


Regarding the HR monitor, it has a real time monitoring, it has an option for the details of your heart rate on the support app such as meditation, warm-up, intensive workout or anaerobic extreme.

It also loaded with pedometer, calorie and distance counter, Additional health features included are sedentary alert, as well as sleep monitoring.


There is call and message notifications, as well as social app notifications and can also work as Bluetooth earphone. Extra functions included are stopwatch, alarm, remote camera, anti-lost and other useful functions. See website of Kingwear




Form Factor

Design Rectangle


Screen Size 0.96" inch
Display Type IPS LCD
Screen Resolution 80 x 160 pixels
Touch Type Touch Button (Touch Key)


Size 63.2 x 24.3 x 14 mm
Weight 250g
Casing PC


OS Platform Proprietary OS


CPU nRF52832


Internal Storage 512 KB
Card Slot none


SIM Slot none
WIFI none
NFC none
Bluetooth Band: Bluetooth 4.0, Earphone: Bluetooth 3.0
USB none


Battery Capacity 100 mAh Lithium Polymer Battery Standby Time: 7 days
Charging Technology Magnetic Charging Cable

Body Resistance

Body Protection IP68 Waterproof
Glass Technology -


Sensors/Functions Triaxial sensor


Audio Speaker and Mic is on the Headphone


Camera Type none


Features call and message notifications, as well as social app notifications, pedometer, calorie and distance counter, stopwatch, alarm, remote camera, anti-lost, Bluetooth call.

Other Details

Other Details -

Package Contents

Package Contents 1 x Kingwear KR04 Bluetooth Call Headset Smart Band
1 x Charging Cable
1 x User Manual

Color Availability

Colors Black, Silver


Compatibility Android and iOS
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