SIMSONLAB¶
PulseLoop support: ❌ Not supported (this model)
SIMSONLAB sells more than one ring — the LuckRing-app ones are supported
SIMSONLAB is a retail brand (SHARE AUDIO HONG KONG LIMITED) that sources rings from at least two
OEMs. This page is about the LA380-YJ (a Phyplus PHY6222 ring on an unknown protocol, paired
with the SIMSONLAB app), which is not supported. The SIMSONLAB-branded rings that pair with the
LuckRing app are a different OEM's hardware (Shenzhen Coolwear/Kewo, advertising as TK18) and
are supported — see LuckRing / TK18. Check which app your ring came with.
The SIMSONLAB LA380-YJ uses a completely different, undocumented BLE protocol on a Phyplus PHY6222 SoC. There's no public reverse engineering, so it isn't compatible with any of PulseLoop's existing drivers. It's documented here for reference and in case the protocol is ever decoded.
Why it isn't supported
Unknown, custom BLE protocol — different from both the 56ff and QRing
families — with no public reverse engineering or datasheet to work from.
Manufacturer¶
- SHARE AUDIO HONG KONG LIMITED (developer of SIMSONLAB app)
- Product appears on Shein, AliExpress, TikTok
- Model: LA380-YJ (2025)
Hardware¶
| Component | Detail |
|---|---|
| CPU | Phyplus PHY6222 |
| SoC architecture | ARM Cortex-M0 32-bit |
| Bluetooth | BLE 5.1 |
| Memory | 512 KB built-in, 64 KB SRAM, 128 KB–8 MB flash |
| HR sensor | HX3602 |
| Battery | 15 mAh (magnetic charging) |
| Standby | 10–15 days |
| Weight | ~5 g |
| Material | Stainless steel outer, epoxy resin body |
| Waterproof | IP68 |
| App | SIMSONLAB app (iOS + Android) |
Protocol¶
- Unknown — completely different from both 56ff and QRing
- Custom BLE protocol (likely)
- Not compatible with PulseLoop's existing drivers
HX3602 Sensor¶
- Generic/low-cost heart rate sensor
- Used across many cheap Chinese wearables (SIMSONLAB rings, NKX19 watches, DaintyDelight smartwatches)
- No standalone public datasheet found
- LED configuration unknown (likely single wavelength vs VC30F's dual red+green)
- No independent accuracy testing available
See the hardware overview for the rings PulseLoop does support.