Who has higher sensitivity — maaryy or sirah?

maaryy plays at 400 eDPI while sirah plays at 440 eDPI. sirah uses a higher sensitivity (Low). The pro average is 846 eDPI.

Do maaryy and sirah use the same resolution?

maaryy plays on 1280x960 (4:3 Stretched) while sirah plays on 1280x960 (4:3 Stretched). Both use the same resolution.

maaryy uses the Razer DeathAdder V4 Pro Black at 400 DPI, while sirah uses the Razer DeathAdder V4 Pro Black at 400 DPI.

sirah's 440 eDPI is 10% higher than maaryy's 400 — a full turn takes sirah 94.5cm of mousepad against maaryy's 103.9cm.
Both run their mouse at 400 DPI, so the difference is entirely in-game sensitivity (1 vs 1.1).
Both play 1280x960 stretched.
maaryy runs a cyan crosshair at size 1; sirah a green one at size 1.
They share hardware: both use the Razer DeathAdder V4 Pro Black.

maaryyStatic Cross · size 1 · gap -4CSGO-DEDrd-3n46k-7F8s8-B3ta9-tvwPB

sirahStatic Cross · size 1 · gap -4CSGO-Cr7BJ-7CbBi-yx2oQ-Jy32v-7cG4C

Previews are representative, not pixel-exact — copy the code to see the real thing in-game.

Slot	maaryy	sirah
Knife	Butterfly Knife \| Doppler - Phase 1	Butterfly Knife \| Gamma Doppler - Phase 2
Gloves	—	Driver Gloves \| King Snake
Rifle Skin	AK-47 \| The Empress	AK-47 \| Bloodsport
Pistol Skin	USP-S \| Printstream	Glock-18 \| Green Line
AWP Skin	AWP \| Duality	AWP \| Graphite

Who has higher sensitivity — maaryy or sirah?: maaryy plays at 400 eDPI while sirah plays at 440 eDPI. sirah uses a higher sensitivity (Low). The pro average is 846 eDPI.
Do maaryy and sirah use the same resolution?: maaryy plays on 1280x960 (4:3 Stretched) while sirah plays on 1280x960 (4:3 Stretched). Both use the same resolution.
What mouse does maaryy use vs sirah?: maaryy uses the Razer DeathAdder V4 Pro Black at 400 DPI, while sirah uses the Razer DeathAdder V4 Pro Black at 400 DPI.