compare hrm from 2 different devices

fit-files.py

#!/usr/bin/env python3

from fitparse import FitFile
import matplotlib.pyplot as plt


garmin_fitfile = FitFile('./Evening_Ride.fit')
wahoo_fitfile = FitFile('./short_scream_into_the_void_race_.fit')

garmin_hr = []
garmin_ts = []
wahoo_hr = []
wahoo_ts = []

# Get all data messages that are of type record
for record in garmin_fitfile.get_messages('record'):
    for record_data in record:
        if record_data.name == "heart_rate":
            garmin_hr.append(record_data.value)
        elif record_data.name == "timestamp":
            garmin_ts.append(record_data.value)

# print(garmin)

for record in wahoo_fitfile.get_messages('record'):
    for record_data in record:
        if record_data.name == "heart_rate":
            wahoo_hr.append(record_data.value)
        if record_data.name == "timestamp":
            wahoo_ts.append(record_data.value)

# print(wahoo)

plt.plot(garmin_ts, garmin_hr, label='Garmin')
plt.plot(wahoo_ts, wahoo_hr, label='Wahoo Tickr')
plt.legend()
plt.show()