Xiaomi Smart Doorbell 3 – 2K Video, 180° Diagonal View, AI Human Detection, 5200mAh Battery up to 4.8 Months, Wireless Chime Included

The Xiaomi Smart Doorbell 3 is a battery-powered video doorbell built for apartment and corridor doors: it streams the doorstep to your phone in 2K, sends an alert when a person is detected, and rings a small wireless chime inside the apartment. Xiaomi sells it as model MJML06-FJ with a 5200mAh battery, a diagonal 180-degree lens and free rolling 72-hour cloud storage, all set up through the Xiaomi Home app. It is ready stock in the UAE, and it is the simpler, indoor-rated sibling of the newer Smart Doorbell 3S.

Where the Xiaomi Smart Doorbell 3 Fits Best

Xiaomi is direct about one thing in the footnotes of its product page: the Xiaomi Smart Doorbell 3 is not waterproof and should not be used outdoors. That single line decides who should buy it. In the UAE, a large share of front doors open onto an air-conditioned building corridor, a lobby or a covered landing rather than an open street, and that is exactly the setting the doorbell is designed for. Its working range is -10 to 45 degrees Celsius with 10 to 90 percent non-condensing humidity, which suits an indoor hallway but not a gate in the summer sun.

The other thing that makes the Xiaomi Smart Doorbell 3 apartment-friendly is that no wiring is involved. It runs entirely on its internal battery and sticks to the door with a 3M adhesive mounting base, or it can be screwed on. Tenants who are not allowed to drill into a door or run cables can install it and take it with them when they move, using the supplied removal pin.

Xiaomi Smart Doorbell 3 or Smart Doorbell 3S?

Both models share 2K video, a diagonal 180-degree view, a 5200mAh battery, two-way audio, 72-hour cloud storage and the same indoor chime (model MJJSQ04-FJ). The differences, taken from Xiaomi’s own specification pages, are these:

• Weather protection: the 3S is rated IP65; the Doorbell 3 has no IP rating and Xiaomi says it is not for outdoor use.
• Power: the 3S can also be hardwired to an 8-24VAC doorbell transformer; the Doorbell 3 is battery only, charged over USB-C.
• Battery life in Xiaomi’s lab test: 4.8 months for the Doorbell 3 against 4.2 months for the 3S, under the same 20-clips-a-day test.
• Night vision: four 940nm infrared lights on the Doorbell 3, six on the 3S.
• Temperature: -10 to 45 C for the Doorbell 3, -20 to 50 C for the 3S.
• Size: 128 x 60 x 23.5mm for the Doorbell 3, 146 x 52 x 29mm for the 3S.
• Extras on the 3S page: Wi-Fi 6, a custom monitoring area, night vision sensitivity adjustment and Alexa or Google Assistant support. The Doorbell 3 pages do not list these.

In short, the Xiaomi Smart Doorbell 3 gives up outdoor protection and hardwiring, and in return it is slimmer, lasts longer per charge in Xiaomi’s test and costs less. If your door is sheltered indoors, those 3S extras matter far less.

2K Picture, 180-Degree View and Night Vision

Xiaomi lists 2K resolution for the camera of the Xiaomi Smart Doorbell 3, a step up from the 1080p of earlier doorbells, which helps when you want to read a courier’s uniform or recognise a neighbour’s face in a saved clip. Xiaomi does not publish the exact pixel count or sensor model. The lens covers 180 degrees diagonally and Xiaomi says the vertical angle reaches 107 degrees, so a visitor standing close to the door is seen from head to feet rather than cropped at the chin, and a parcel placed on the floor stays in view.

For dark corridors and night-time arrivals, the Xiaomi Smart Doorbell 3 uses four built-in 940nm high-power infrared lights to switch the picture to night vision. Light at 940nm is invisible to the eye, so there is no red glow on the doorbell to tell visitors it is recording. Xiaomi does not state a night vision range.

Alerts, Live View and the Voice Changer

A human body sensor works with AI human shape recognition to watch the doorstep around the clock. When a person is detected, the Xiaomi Smart Doorbell 3 records a clip and pushes a notification to your phone, so a delivery left at the door or someone lingering in the corridor does not go unnoticed. Clips go to free rolling 72-hour cloud storage: each video stays in the cloud for three days and is then deleted, with no memory card or subscription required. Xiaomi lists cloud storage only, with no microSD slot.

You can also wake the Xiaomi Smart Doorbell 3 remotely and watch the doorway live from anywhere. When a visitor rings, you answer from your phone with two-way audio, and a built-in voice changer offers original, clown and old man voices for anyone who prefers not to reveal who is home. A recorded welcome message, such as asking a courier to leave the package at the door, can play automatically after the button is pressed.

Battery Life of the Xiaomi Smart Doorbell 3

The Xiaomi Smart Doorbell 3 carries a 5200mAh lithium battery, and Xiaomi’s headline is that it only needs charging about three times a year. The test behind that claim is specific: MadV laboratory measured 4.8 months in standard mode at 25 degrees Celsius, with twenty 10-second videos recorded per day and no other operations. A busy corridor, frequent live viewing or long two-way calls will shorten that. Charging uses a USB Type-C port rated at 5V 2A, and Xiaomi specifies a charging temperature of 0 to 45 degrees Celsius. To charge, you slide the doorbell off its base with the removal pin and connect the supplied cable.

Chime, Mounting and Anti-Theft

The chime included with the Xiaomi Smart Doorbell 3 talks to the doorbell over 433MHz radio, so it still rings when the internet is down. It has four volume levels with a maximum of 79dB (measured at 50cm in Xiaomi’s lab) and a do-not-disturb mode for nap times. The chime is rated at 5V 1A and measures 60 x 60 x 39.6mm; Xiaomi lists one Type-C cable in the box and no power adapter, so plan on a USB adapter for the chime.

Installing the Xiaomi Smart Doorbell 3 takes a few minutes: scan the QR code on the back of the doorbell with the Xiaomi Home or Mi Home app, follow the pairing steps, stick the mounting base to the door and snap the doorbell on. Against theft, a forced-removal alarm sounds, records video and alerts your phone, and the doorbell is paired one-to-one with your account on Xiaomi’s cloud, so a stolen unit cannot be paired to anyone else.

Who This Is Not For

Not for outdoor gates, villa entrances exposed to rain or direct sun, or any door outside a building: Xiaomi states the product is not waterproof and should not be used outdoors, and its operating limit is 45 degrees Celsius. Choose the IP65-rated 3S for that.

Not for anyone who wants to connect to existing doorbell wiring: the Xiaomi Smart Doorbell 3 is battery only.

Not for homes that need local recording: there is no memory card slot, and free cloud clips are kept for 72 hours.

Not for 5GHz-only networks: it needs 2.4GHz Wi-Fi (802.11b/g/n) at the door.

Not for people who rely on Alexa or Google Assistant: Xiaomi does not list voice assistant support for this model.

Ordering in the UAE

Totot keeps the Xiaomi Smart Doorbell 3 in stock in the UAE and delivers to every emirate within up to 3 business days, with free delivery on orders from AED 300. If the unit arrives defective or is not what you ordered, you can return it within 14 days; please report any shipping damage within 48 hours of delivery. Pay by cash on delivery, Tabby or Tamara.

Browse more Security and Surveillance at Totot, or see the official Xiaomi page for full product details.

Technical Specifications

• Model: Xiaomi Smart Doorbell 3 (doorbell MJML06-FJ, chime MJJSQ04-FJ)
• Video: 2K (pixel dimensions not published)
• Field of view: 180 degrees diagonal, 107 degrees vertical
• Night vision: 4 x 940nm infrared lights
• Detection: Human body sensor + AI human shape recognition, phone alerts
• Audio: Two-way voice calls, voice changer, custom auto reply
• Storage: Free rolling 72-hour cloud storage; no microSD slot listed
• Battery: 5200mAh (typ); 4.8 months in MadV lab test (standard mode, 25 C, 20 x 10-second videos per day)
• Charging: USB Type-C, 5V 2A; charging temperature 0 to 45 C
• Power options: Battery only (no hardwiring)
• Wireless: Wi-Fi IEEE 802.11b/g/n 2.4GHz; RF 433MHz to chime
• Water resistance: Not waterproof; Xiaomi says not for outdoor use
• Operating conditions: -10 to 45 C, 10 to 90% RH non-condensing
• Doorbell dimensions: 128 x 60 x 23.5mm
• Chime: 60 x 60 x 39.6mm, 5V 1A, 4 volume levels, 79dB max, do not disturb, works offline
• App: Xiaomi Home / Mi Home
• In the box: Doorbell, chime, Type-C charging cable, mounting base, removal pin, screws, user manual, attention sticker
• Warranty: 1-year warranty from Totot

FAQ

Can the Xiaomi Smart Doorbell 3 be installed outdoors?

No. Xiaomi states it is not waterproof and should not be used outdoors; it is meant for doors inside a building or a fully sheltered entrance.

How is it different from the Smart Doorbell 3S?

4 key points: the 3S adds IP65 weather protection, optional hardwiring, six infrared lights instead of four and a wider -20 to 50 C range, while the Doorbell 3 is slimmer and lasted 4.8 months against 4.2 months in Xiaomi’s battery test.

Does it need wiring?

No. It runs on a 5200mAh battery charged over USB-C and mounts with 3M adhesive or screws.

How long does the battery last?

4.8 months in Xiaomi’s lab test with twenty 10-second clips a day at 25 C; heavier use shortens it.

Is a chime included?

Yes. A wireless chime with 4 volume levels and a 79dB maximum is in the box; Xiaomi does not list a power adapter for it.

Does it work with 5GHz Wi-Fi?

No. It connects over 2.4GHz Wi-Fi only.

Is there a subscription for recordings?

No. Motion clips are stored free in the cloud for 72 hours, then deleted.

What warranty does Totot give?

1 year from Totot, plus returns within 14 days if the item is defective or not as ordered.