Hi- I am a petite female spinner. One review advised against the Polar F 11 because numbers were small and difficult to read in dark room. I would like to read %max HR during class, and be able to adjust my exertion accordingly. Don't necessarily need all the bells and whistles. Which model do you spinners out there suggest given my needs and size. Ideally want large numbers with easy readability. Do you think the F6 or F7 would be better choice? Please advise.

Tech Specs:

Material:

[Housing] plastic; [Strap] rubber 

Barometer:

No 

Heart Rate Monitor:

Yes 

Chronograph:

Yes 

Thermometer:

No 

Digital Compass:

No 

Adjustable Declination:

No 

Low Battery Indicator:

Yes 

PC Compatible:

Yes 

Waterproof:

Water resistant to 165ft (50m) 

Backlight:

Yes 

Alarms:

1 Time 

Size:

Medium 

Recommended Use:

Training, running 

Manufacturer Warranty:

2 Years