Cat M1 bands:

B1/B2/B3/B4/B5/B8/B12/B13/B14/B18/B19/B20/B25/B26/B27/B28/B66/B85

OS    Free RTOS

SIM size: Nano SIM & Gemalto ESIM.

Product Size: 45.5*45.5*19.5MM

Weight: around 30g (with battery)

NB & CAT M1 Module: nordic Nrf9160

Data

Bluetooth: nordic 52832, Bluetooth 5.1

Wi-Fi: ESP32

GPS: YES

Charging: Type-C USB

Sensors：PIR sensor / Magnet door sensor / Temperature-Humidity sensor / Light

sensor / G-sensor(3-aixs) / Emergency alarm buzzer / LED

Battery: 1100mAh