What it actually feels like.
24 placements rated honestly by readers.
Arm
Outer arm is mild; inner arm jumps to 6–7
Sleeve
Variable — bicep mild, inner upper arm and elbow ditch are painful
Half-Sleeve
Similar to full sleeve but covers less
Leg
Thigh mild; calf moderate; shin painful (bone proximity)
Back
Mid-back and lower-back are mild; spine itself is 9/10
Hand
Thin skin, lots of bones, lots of nerves — among the most painful spots
Neck
Sides moderate; throat and nape sharp; especially close to skull
Wrist
Inner wrist 7/10 (thin skin, tendons); outer wrist 5/10
Forearm
Outer forearm easy; inner forearm 6–7/10
Chest
Pectoral is OK; sternum is 9–10/10
Shoulder
One of the easier spots; lots of muscle
Shoulder Blade
Bone-adjacent but well-padded; moderate
Thigh
Outer thigh mild; back of thigh 7/10; inner thigh 8/10
Inner Thigh
Very thin sensitive skin; one of the more painful spots
Inner Wrist
Thin skin, tendons close to surface, sensitive nerves
Knee
Front of knee 10/10 (bone directly under skin). Back of knee 8/10 (thin skin + nerves).
Calf
Outer calf easy; near shin gets sharper
Ankle
Bone directly under thin skin; very painful
Foot
Top of foot and arch are both painful; bones near surface
Waist
Ribs nearby; thin skin
Tricep
Back of upper arm; muscle pad helps
Behind Ear
Thin skin, close to skull (vibration is intense)
Ribs
Thin skin directly over bone; among the most painful spots on the body
Sternum
The most painful spot for most people — bone directly under thin skin, central nerves