Bluetooth’s shorter intervals needed implementation support

Historical report — Bluetooth SIG’s November 4, 2025 announcement described Core 6.2’s reduction of the minimum LE connection interval from 7.5 milliseconds to 375 microseconds. This was a specification timing parameter, rather than a reported end-to-end benchmark for a particular keyboard or mouse. ^[1]

SIG’s undated Low Energy primer defines connection interval as how often a radio can service a connection. It also describes peripheral latency: a peripheral may skip connection events to save power. These parameters explain why a short possible interval does not mean every device exchanges data at every opportunity. ^[2]

A later HID profile version, dated April 21, 2026, defines input latency from human action to application detection. Its timing rules require support from both devices, while sampling, processing and buffering also contribute. This measures a larger response path than the interval between radio transmission opportunities. ^[3]

SIG’s November 21, 2025 qualification guide lists design specification, submission and verification phases. It defines a complete layer through mandatory, conditional and included optional features. That makes the declared capability set important to qualification. The guide describes that process; it does not publish response-time measurements for an individual shopper’s device. ^[4]

About this item: Retrospective report. No first-hand reporting or independent testing is claimed. Corrections policy.