Xiaomi Smart Doorbell 3S – 2K 3MP Video, 180° View, AI Detection

Genuine on-device AI processes humanoid detection locally — the Xiaomi Smart Doorbell 3S genuinely does not need to upload video to the cloud just to recognise a person at the door, a real privacy and speed advantage over doorbells that rely entirely on cloud analysis.

Xiaomi Smart Doorbell 3S: Real On-Device AI Detection

This distinction genuinely matters for anyone concerned about camera footage being processed on distant servers rather than the device itself.

A local AI humanoid detection algorithm genuinely identifies human contours and tracks movement without sending footage to the cloud for analysis first, meaning faster alerts and one less privacy concern for anyone hesitant about cloud-dependent security devices.

2K Resolution, Genuinely Sharper Than 1080p

This extra detail genuinely matters for identifying delivery personnel or reading a package label from the recorded footage later.

2K resolution, with 3 million ultra-clear pixels, genuinely captures more facial detail than standard 1080p doorbells — when installed at the recommended 1.5-metre height, it captures full-body footage of visitors standing 1.1 metres away.

Full official specifications are on this official Xiaomi Smart Doorbell 3S specifications page.

Browse more in our security and surveillance collection, or see everything we carry from Xiaomi.

Xiaomi Smart Doorbell 3S: Power Options

A built-in 5200mAh lithium battery genuinely eliminates the need for hardwiring in homes without existing doorbell wiring, while a wired power option is also supported for anyone who prefers a permanent connection without battery recharging.

Who This Suits

It also genuinely suits anyone specifically wanting to record custom welcome messages for a personalised touch whenever visitors arrive at the door.

This suits anyone wanting genuine 2K clarity and reliable AI person detection without professional installation, particularly renters or homeowners without existing doorbell wiring. For a more budget-focused option without IP65 outdoor rating, the standard Smart Doorbell 3 in the range covers basic needs at a lower price.

Xiaomi Smart Doorbell 3S: The Infrared Illuminators

Reliable night footage genuinely matters most for security, since many incidents at a front door happen after dark.

Six built-in 940nm high-power infrared illuminators genuinely activate automatically as it gets dark, and a new night vision sensitivity adjustment specifically reduces the false or inaccurate switching between day and night modes that older doorbells often show.

Full Technical Specifications

• Model: Xiaomi Smart Doorbell 3S
• Resolution: 2K, 3 million pixels
• Field of View: 180° diagonal
• Detection: Local AI humanoid detection, no cloud dependency
• Night Vision: 6x 940nm IR illuminators
• Water Resistance: IP65
• Power: 5200mAh battery or hardwired
• Connectivity: Wi-Fi 6
• Chime: Wireless, works offline, 4 volume settings
• Communication: Two-way audio
• Detection Zones: Customisable
• Warranty: 1-year warranty from Totot

Full FAQ – Xiaomi Smart Doorbell 3S

Does it genuinely need internet to detect a visitor?

No, on-device AI processes humanoid detection locally without needing to upload footage to the cloud first.

Can it really be used outdoors in the rain?

Yes, IP65 water and dust resistance supports stable performance in adverse weather.

Does it always need to be hardwired?

No, a 5200mAh battery works standalone, though hardwiring is also supported if preferred.

Will the chime still work even if my internet goes down?

Yes, the wireless chime rings even when disconnected from the internet.

Can I limit notifications to certain areas?

Yes, customisable detection zones let you focus alerts only on the areas that matter.

Can I record a custom welcome message?

Yes, a personalised auto-reply message can be recorded and automatically plays when visitors press the doorbell.

Does Totot deliver across the UAE?

Yes. We ship nationwide via Aramex for a fixed AED 10, with cash on delivery, Tabby and Tamara available at checkout.