What DPI you guys are running in this game

DPI: 800

In-game sensitivity: 3.0

In-game ADS sensitivity: 1.0

In-game mouse acceleration: off

Mouse invert: on

I'm also using mouse acceleration and deceleration set at 40% in my SteelSeries Engine 3 software. 🤓

DPI-1000

In-game mouse sensitivity- 2.5

This is the most pro tip you can get about aiming with a mouse.

Most "pros" use low sensitivity for the accuracy benefits.  The further the distance you have to move your mouse to rotate 360 degrees in game the more accurate you can be.  There is of course a trade off with accuracy versus speed and work.  The further the distance the longer it will take you to get there and the more physical movement required.

Imagine a 360 degree panoramic picture of your in game view as your mouse pad.  The bigger your picture is the bigger the target is that you have to place your mouse sensor on.  Just ask yourself, "Do I want to have to land on a pinhead or a dime?".  It's just that simple.

I'm a moderately high sensitivity player because I don't like having lots of sweeping arm movements while looking around.  I prefer shorter wrist/arm flicks and lift offs.  I'm currently using 800dpi with 2.2727 sensitivity giving me 9in/360 (22.86cm/360) on a 16in mouse pad for short flicking 180 degrees while still being able to pixel shift with micro movements and throw 360 no scopes for fun.

Generally speaking the faster you want  your sensitivity the higher the dpi you should use.  If you want to know what the maximum dpi is you should be using find it with the calculator here: https://sensor.fyi/info/#resolution--cpi--dpi--ppi

Using your own numbers to demonstrate the effect of dpi and sensitivity settings and how they affect inches per 360 degree rotation we get  400/3.0 = 13.636in, 600/3.0 = 9.091in, 800/3.0 = 6.818in, 800/3.5 = 5.844in, 1600/3.0 =  3.409in and 1600/3.5 = 2.922in.  Remember our imaginary mouse pad?  Do you really want to try and land on a target inside a 2.922in by 1.461in picture at 1600/3.5, sounds tough.

An important note here, if you aren't using the default setting in Windows of 6/11 pointer speed (center tick) without enhanced pointer precision for your mouse my measurements will not be the same on your pc.  Pointer speed is a multiplier with the default of 6 being 1x.  Lowering it gives a lower multiplier while increasing it gives a higher multiplier.  Enhance pointer precision essentially varies your mouse dpi based on movement speed, aka mouse acceleration (gross).

I don't remember where I got my distance calculator, it was for the source engine so I assume it applies to Apex.

I'll just leave this here

https://jscalc.io/calc/ugnBLorgk9Dk1zZ4

use source / quake sensitivity for apex legends sensitivity, fill in both sens and DPI and check the output cm/360.

I'm using 600 dpi (because I use this mouse to browse or multitask, lower than that is just too slow) and 2.5 sens.

People like shroud use 34 -31cm/360, this is good for sniping and long range. And other people like dizzy who don't snipe that much (short range / mid range player) use 20cm/360.

https://prosettings.net/apex-legends-pro-settings-gear-list/

@warslagMouse invert and acceleration? You're mad. I use a controller with inverted controls, but an inverted mouse seems crazy.

I use in game sens of 1.2 and 1000 DPI.

DPI: 400

In-game sensitivity: 2.8

In-game ADS sensitivity: 0.9

In-game mouse acceleration: off

Mouse invert: off

Actually most "pros" use aimbots and not mouse aim.

@Mast3rMirror800 dpi, 1 ingame
(= 2@400dpi)

P.S. 110 ingame fov (affects turning rate, so relevant)

As a very rough rule of thumb (800 dpi values):

0.5-1.5 sens for arm-only aiming style (wrist relaxed and stationary (not turning) most of the time)

1.5-5 for mixed arm-wrist style (general movements with arm, microadjustments with wrist)

>5 for wrist only style (stationary arm, all movements from the wrist - not a good idea for fps)

It's not something forced, you'll just feel you start adjusting with your wrist when you up your sensitivity (or vice versa - you'll feel your wrist becomes less and less useful, when you go down in sensitivity). Some ppl don't mind it, but most probably can't do it effectively (it's just so many more variables).

When you change from 1 style to another, you'll definitely need some time (days, maybe weeks) to adjust until it's comfortable enough for you to judge if you like it or not.