These are good performing pens with a wide pressure range.
Models
3 Button Pen + Eraser v2 (XMCPH35)
Thin Pen + Eraser v2 (XMCPH36)
Rating: TYPICAL. Xencelabs specifies 3gf. That felt accurate. Typical for a non-Wacom pen and low enough for me. Wacom Pro Pen 2 min pressure is <1gf.
Rating: VERY GOOD
Xencelabs has indicated their max pressure should be 500gf. And I found that to be accurate. There is some variation - the Thin pen had an even wider pressure range than Xencelabs claimed (which is good).
3 Button Pen + Eraser v2 (XMCPH35) -> my unit measured at 500gf
Thin Pen + Eraser v2 (XMCPH36) -> my unit measured at 600gf
In comparison
Wacom Pro Pen 2 has higher max pressure at 800gf.
Huion's PW600 and P600S pens have a comparable max pressure of 500gf.
XP-Pen X3 Pro pen has a comparable max pressure of 400gf.
Pressure response
3-button pen V2
9gf -> 18%
54 -> 30%
130 -> 50%
245 -> 75%
290 -> 80%
360 -> 90%
400 -> 95%
500 -> 100%
2-button pen V2
Measurements:
9gf -> 18%
105 -> 30%
130 -> 50%
245 -> 75%
290 -> 80%
360 -> 90%
400 -> 95%
500 -> 100%