– LIDARs – mm-level
– Ultrasound – cm-level
– Optical – mm to decimeter level
– UWB – decimeter-level
– BLE/WiFi – a-few-meter-level
That was a short story. The long story is full of details.
Typically, LIDARs are not considered as realtime location systems (RTLS) – rather as an obstacle avoidance systems. They can be used for positioning, but with some special stipulations, that is not their primary role.
Accuracy of optical systems nearly directly depends on the distance. On short distances – mm-level. On longer – decimeters or even meters in some cases.