Spec
Ekrin B37
Bob and Brad C2
Price
$230
$90
Rating
4.8 ★
4.6 ★
Amplitude
12 mm
8 mm
Stall Force
56 lbs
35 lbs
Speeds
5
5
Battery
8 hrs
4 hrs
Weight
2.2 lbs
1.5 lbs
Noise
55 dB
50 dB
+8-hour battery life
+Lifetime warranty
–Smaller brand support network
–12mm amplitude only mid-pack
+Excellent value
+Light and compact
–Shallow 8mm amplitude
–Not for deep tissue work