Conexio Technologies' Stratus is an open source LTE-M/NB-IoT Cellular-IoT development kit based around Nordic Semi nRF9160. Stratus can charge battery from solar power & comes with 500 MB global data plan. Stratus will be available on Crowd Supply.
Mbits is a BBC micro:bit compatible STEM educational board from Elecrow based on ESP32 SoC. Mbits costs less than micro:bit and supports Letscode visual programming and Arduino.
Nordic Semiconductor's nRF9160 is a low power LTE-M and NB-IoT wireless modem available in a small footprint System-in-Package and is targeted for Cellular IoT applications.
nPM1100 Power Management IC from Nordic Semiconductor Delivers Power to Your Circuits and Charges Battery
Nordic Semiconductor's new nPM1100 Power Management IC (PMIC) can deliver power to circuits and charge battery of your portable device designs.
Nordic Semiconductor and Hackster.io are collaborating on an open contest - Advanced Wearables - to find best wearable device designs.
Arduino Pro has released a remote monitoring and control solution called Arduino Edge control. The board features uBlox Nina B306 BLE 5 module and two Arduino MKR expansion slots.