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OBD2 Bluetooth connection

Supported OBD2 devices

NoteDri directly tests every adapter on a real car, not just relying on manufacturer specs. Below are the continuously updated results.

Konnwei lineup - tested, recommended

NoteDri has directly tested these on a real car and now recommends the Konnwei lineup as our current focus. Detailed specs are sourced from the official konnwei.com product pages.

TESTED
Konnwei KW902 ELM327 Bluetooth 5.2

Konnwei KW902

ELM327 Bluetooth 5.2

View official product page
Connection
Bluetooth 5.2 - Android & iOS
OBD2 protocol
SAE J1850 PWM/VPW, ISO 9141-2, ISO 14230-4 (KWP2000), ISO 15765-4 (CAN) 11/29-bit, 500/250 Kbaud
Power consumption
Automatically enters sleep mode after 30 minutes of inactivity
Design
Compact, plug and play
PREMIUM COMBO TESTED
Konnwei KW905 ELM327 Bluetooth 5.2

Konnwei KW905

ELM327 Bluetooth 5.2

View official product page
Connection
Bluetooth 5.2 - Android & iOS
OBD2 protocol
9 OBD2 protocols: SAE J1850 PWM/VPW, ISO 9141-2, ISO 14230-4 (KWP2000), ISO 15765-4 (CAN) 11/29-bit, 500/250 Kbaud
Readable parameters
15 readable parameters: RPM, speed, coolant temperature, fuel pressure, throttle position, intake air temperature...
Power consumption
Automatically enters sleep mode after 30 minutes of inactivity
Buy on Shopee
PREMIUM COMBO TESTED
Konnwei KW906 ELM327 Bluetooth 5.2

Konnwei KW906

ELM327 Bluetooth 5.2

View official product page
Connection
Bluetooth 5.2 - Android & iOS
OBD2 protocol
Full OBD2 protocol support: J1850 VPW, J1850 PWM, ISO 9141-2, KWP2000, CAN
Readable parameters
15+ readable parameters: vehicle speed, RPM, coolant temperature, fuel consumption, throttle position...
Power consumption
Automatically enters sleep mode after 30 minutes of inactivity
Buy on Shopee

Konnwei spec details are sourced from the official product pages at konnwei.com.

Vgate iCar Pro - our first tested device

The first device NoteDri tested, still working reliably - no longer our current focus, but if you already own one it works fine as before.

Vgate iCar Pro Bluetooth 4.0 (BLE)

Vgate iCar Pro

Bluetooth 4.0 (BLE)

View official product page
Connection
Bluetooth 4.0 (BLE) - Android & iOS
OBD2 protocol
SAE J1850 PWM/VPW, ISO 9141-2, ISO 14230-4 (KWP2000), ISO 15765-4 (CAN)
Command standard
ELM327 compatible
Power consumption
Auto-sleeps/wakes with the ECU - virtually no battery drain
Operating temperature
-40°C ~ 85°C

Comparison table

Device Connection OBD2 protocol Android iOS
Konnwei KW902
Bluetooth 5.2 J1850 PWM/VPW, ISO 9141-2, KWP2000, CAN
Konnwei KW905
Bluetooth 5.2 9 OBD2 protocols per manufacturer spec
Konnwei KW906
Bluetooth 5.2 J1850 PWM/VPW, ISO 9141-2, KWP2000, CAN
Vgate iCar Pro
Bluetooth 4.0 (BLE) J1850 PWM/VPW, ISO 9141-2, KWP2000, CAN

All devices in this table have been plugged in and tested by NoteDri on a real car. Connection/protocol specs are sourced from the official product pages at konnwei.com and vgatemall.com.

Connect the device to your vehicle

Connecting OBD2 with NoteDri

Plug the adapter into the 16-pin OBD2 port, usually under the dashboard near the steering wheel. Then turn on Bluetooth on your phone to get ready to connect.

Read the full article
Konnwei KW906 PREMIUM COMBO

Buy genuine OBD2 devices

Konnwei KW905 & KW906

Buy a diagnostic device combo bundled with lifetime PREMIUM worth 129,000₫ plus thousands of other perks.

View & buy now

Learn about OBD2 connection

See how to connect, what data is read, and common questions about the OBD2 feature on NoteDri.

View the OBD2 intro page