GPS Track Compare - Instinct2 vs Instinct1 vs f7X SS

On my run last night I decided to track with an Instinct 2 Solar, Instinct 1 Solar, and an f7X Solar/Sapphire. 

GPS Settings:

1. Recording Rate - 1 second (all devices)
2. GNSS Settings
   1. I2 - GPS/Glonass
   2. I1 - GPS/Glonass
   3. f7 - All GNSS w/ Multi-frequency
3. Activity - Run (all devices)

I've dropped in a couple of screen shots below of track snippets. 

Green = I2

Purple = I1

Red = f7 

For the entire run, the I2 tracked very close to the f7 and the I1 wandered slightly.

I've taken the I2 on two runs now with the f7 and both have shown to be very close.  These tracks were recorded in the flat midwest (US) in the winter (no leaves) without much to challenge GNSS reception.  Still impressive.