Model A2
A2 ECG Smart Watch
Flagship health watch with ECG, body composition and a 2.2" curved display.
Model TK20
Health Monitoring Smart Ring TK20
5 g smart ring with 25 Hz high-precision SpO2 sampling, 5ATM waterproof and 4-day battery.
- High-precision SpO2 with 25Hz sampling rate
- 5ATM + IP68 waterproof, 7mm slim stainless steel
- 24/7 heart rate, sleep, HRV, blood pressure, glucose
- Only 5g, up to 4 days per charge
- Remote care to monitor family members
Request a Quote for TK20
Available for wholesale distribution and for private-label OEM/ODM customization.
Pricing, MOQ and lead time are confirmed with every quotation. This page shows no list prices.
Features & use cases
TK20 in action
Key functions, interface highlights and typical usage scenarios for the TK20, based on the official English product detail graphics.
Specifications
TK20 technical details
Verified specifications from the TK20 product specification documents. Items not listed are confirmed at quotation.
| Display | No screen |
|---|---|
| Dimensions / weight | 7 mm ring width; approx. 5.0 g |
| Shell | Slim stainless steel |
| Health tracking | 24/7 heart rate, SpO2, sleep, HRV, blood pressure trend and blood glucose trend |
|---|---|
| Sensors | Optical sensor with red / infrared / green LEDs and AFE, plus accelerometer; 25 Hz sampling |
| Family care | Remote care view for family members |
| Chipset | Beken AB2026b3 |
|---|---|
| Wireless | Bluetooth Low Energy 5.2 |
| Compatibility | iOS 13.0+ / Android 8.0+ |
| Companion app | H Ring, 36 languages; white-label app available |
| Battery | 15–20 mAh, magnetic charging (USB 5 V), approx. 1 hour; charging case optional |
|---|---|
| Endurance | Approx. 4 days with Bluetooth connected |
| Water resistance | 5ATM + IP68 |
| Colours | Black / Silver Grey / Rose Gold |
|---|
Wellness device, not a medical device. The TK20 is a consumer wellness and lifestyle product. Heart rate, blood pressure, blood glucose, SpO2, ECG and similar readings are estimates provided for general fitness and wellness reference only. They are not medical measurements and cannot be used to diagnose, treat, cure or prevent any disease or condition. Please consult a qualified healthcare professional for medical advice.
Specifications are based on manufacturer documentation and may vary between production runs. CE, FCC, RoHS and TELEC certification support is available for OEM orders; applicable certifications are confirmed per model and destination market.
OEM / ODM customization
Make the TK20 your own
Every EngraSun product is available for wholesale distribution and for full B2B customization — from laser-engraved branding to packaging and certification.
Laser-engraved logo & branding
Custom industrial design (ID) & colours
Custom shell materials & finishes
Firmware & feature configuration
Custom boot logo
White-label companion app
Multi-language manuals
Certification assistance
Custom packaging & charging case
Plan your TK20 program
Tell us your target market, quantities and customization needs — we reply with a tailored proposal.
FAQ
TK20 — common buyer questions
MOQ, branding options, certification and app support for the TK20, answered for B2B buyers.
What is the MOQ for the TK20?
Minimum order quantity for the TK20 depends on the customization level. Orders based on the existing TK20 molds with logo and packaging customization start at lower quantities, while custom industrial design, new tooling or bespoke firmware requires higher volumes. The exact MOQ is confirmed in our quotation.
Can the TK20 be customized with our own brand?
Yes. The TK20 is available for private-label OEM/ODM: laser-engraved branding, custom colours and materials, boot logo, packaging, manuals and certification assistance. Wholesale orders without branding are equally welcome.
Which certifications can the TK20 support for export?
Certification assistance covers CE, FCC, RoHS and TELEC. The certifications applicable to the TK20 for your destination market are confirmed at quotation.
Which app does the TK20 use?
The TK20 works with the H Ring companion app. White-label app options for the TK20 can be discussed for OEM projects.
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