Manufacturer
XPAL have created this phone for emergency purposes. This phone runs on a single AA-battery which company claims can last for 15 years.
This is a GSM phone. Works even without sim for emergency numbers.
SpareOne Plus comes with a GPS tracking so you can be tracked if lost in case of emergency. You can hear numbers when dialling them so this phone can help you dial even in dark.
Phone price is about 100USD (10000Pakistani Rupees). Previous version of this phone costs 50$.