I'm going to call this fake, maybe some sort of perverted Ukie morale booster.

I could stand to be corrected, but no halfway competent military would allow a soldier to carry a phone into a combat zone. All phones can be tracked and "off" does not mean "off". I would also have to imagine intelligence made available to Ukraine courtesy of the US taxpayer can use remotely activated cameras and microphones.

Or maybe this was made by the Russians to make the Ukro-Nazis look bad. pUtIn'S pLaN!