With EMAY EKG Monitor, all you need to do is turn on the device and place your fingers/hands on the sensors, it will then do the job. The large LCD dispaly on the device allows you to view the real time EKG waveform and heart rate during the whole recording process without the help of a phone.
https://www.amazon.com/EMAY-Portable-Monitor-Software-Compatible/dp/B072DVN9GV

