Research reviewed November 2026. This is a research-based review — we analyzed published specs, pricing, and user feedback.

Quick verdict

✓ Best for:Budget buyers who want the brightest screen in the class and a tracker they charge about once every ten days.

✕ Skip it if:Skip if the 21-day headline sold you — that rating needs health tracking off; normal use is 10 days, 6 with AOD.

Xiaomi Smart Band 11 Review 2026: A 2,000-Nit Screen and a 21-Day Asterisk

Verdict up front: The Xiaomi Smart Band 11 is Xiaomi’s thinnest, brightest budget band yet: a 1.72-inch AMOLED display peaking at 2,000 nits, a 9.99 mm body weighing 15.58 grams, HyperOS 4, and a headline battery claim of up to 21 days. It launched in China in September 2026 from CNY 289, is on sale in Europe at €59.99 (€79.99 with NFC), and gets its full global debut at Xiaomi’s November 17 event in Paris. The asterisk is in Xiaomi’s own test notes: 21 days is the light-usage scenario with all-day stress and blood-oxygen tracking switched off — normal usage is rated at 10 days, and 6 days with the always-on display. Based on Xiaomi’s published global product page and launch pricing; we have not hands-on tested it.

Bottom line: The brightest screen you can buy at this price, in the thinnest body Xiaomi has made — as long as you budget for the honest 10-day battery figure, not the 21-day headline, and accept that there is still no built-in GPS.

What is the Xiaomi Smart Band 11?

The Smart Band 11 is the latest in the budget line that made Xiaomi the default cheap fitness tracker. This generation’s upgrades are physical: the body shrinks to 9.99 mm thick (about 9% thinner than the Band 10, thanks to a new high-density graphite battery cell) and the same-size 1.72-inch AMOLED gets brighter, up from 1,500 to 2,000 nits peak, behind symmetrical 2.0 mm bezels at 60Hz. Health hardware steps up too, with a dual-LED, dual-PD optical sensor, new underwater heart-rate monitoring for swimmers, and Bluetooth heart-rate broadcasting to cycling computers and third-party apps. It is the natural rival to the Fitbit Charge 6 at roughly half the price and with no subscription, and a lighter, cheaper alternative to a full smartwatch like the Xiaomi Watch S5 41mm launching alongside it.

Key specs and price

Display: 1.72-inch AMOLED, 212 x 520, 60Hz, up to 2,000 nits peak brightness (1,500 nits HBM), 2.0 mm symmetrical bezels
Body: 47.44 x 23.66 x 9.99 mm (thickness excludes the heart-rate sensor bump); 15.58 g without strap; Ceramic Edition 21.45 g; NFC version 16 g
Battery: 233 mAh graphite cell — rated 21 days light usage, 10 days normal usage, 6 days with always-on display (Xiaomi internal lab scenarios); magnetic charging, about 90 minutes for a full charge
Health: Heart rate, blood oxygen, stress and sleep tracking with personalised sleep insights and guidance
Sports: 150+ modes; underwater heart-rate monitoring; Bluetooth heart-rate broadcasting; no built-in GPS — route mapping uses your phone
Water resistance: 5ATM (ISO 22810:2010)
System: Xiaomi HyperOS 4; Mi Fitness app on Android and iPhone
Price: €59.99 in Europe (€79.99 NFC version); from CNY 289 in China; global pricing rollout continues at the November 17 Paris event; no official US sale

What Xiaomi’s test notes don’t make obvious

Xiaomi publishes its battery test conditions, and they decide what this band actually delivers. The 21-day figure requires the light-usage scenario: heart-rate checks every 30 minutes, high-precision sleep monitoring off, all-day stress and all-day blood-oxygen monitoring disabled, and just 60 minutes of recorded exercise per week. Turn the full health suite on — the way most buyers will run it — and the rating is 10 days; enable the always-on display and it is 6 days. Still excellent against a Fitbit Inspire 3, but a different promise. Two more footnotes matter. The headline 9.99 mm thickness excludes the heart-rate sensor protrusion, so the band sits slightly thicker on the wrist than the number suggests. And the 5ATM rating, tested to a static 50-metre equivalent, explicitly excludes hot showers, hot springs and saunas — heat and steam are not covered, a limit Xiaomi states plainly in its notes.

Who it’s for — and who should skip it

Consider the Smart Band 11 if you want a bright, readable screen, proper sleep and heart-rate tracking, and a charge roughly every ten days, without a subscription and without smartwatch bulk or pricing. It is an easy upgrade from a Band 9 or 10 and the budget pick against Fitbit. Skip it if you run or cycle without your phone and need built-in GPS (there is none), if you need ECG or irregular-rhythm alerts (there are none), or if you are in the US and want an official Xiaomi warranty — Xiaomi does not sell the band there, so US units are third-party imports.

Pros and cons

Pros: Class-leading 2,000-nit AMOLED at a budget price; genuinely thin and light at 9.99 mm and 15.58 g; honest multi-scenario battery ratings — 10 days with full health tracking beats most rivals; dual-LED sensor with underwater heart-rate monitoring and Bluetooth heart-rate broadcast; no subscription for any feature; ceramic and unibody editions for buyers who want it to look less like a gadget.

Cons: The 21-day headline needs health tracking switched off — 10 days normal, 6 with always-on display; no built-in GPS; no official US sale, so American buyers rely on importers; NFC payments depend on market and bank support; 5ATM rating excludes hot showers and saunas.

Frequently asked questions

How long does the Xiaomi Smart Band 11 battery really last? Xiaomi rates it at 21 days in light usage with all-day stress and blood-oxygen tracking off, 10 days in normal usage with full health tracking on, and 6 days with the always-on display enabled — all from its internal lab test scenarios.

How much does the Smart Band 11 cost? €59.99 in Europe, or €79.99 for the NFC version, from Xiaomi’s own stores; from CNY 289 in China. Xiaomi does not officially sell it in the US.

Does the Smart Band 11 have GPS? No. There is no built-in GPS, so run and ride routes are mapped using your phone’s location. It can broadcast your heart rate over Bluetooth to cycling computers and apps.

Can you swim with the Smart Band 11? Yes — it is rated 5ATM for pools and shallow water. Xiaomi’s own notes exclude scuba diving, hot showers, hot springs and saunas, and leather, metal and woven straps should not be worn for swimming.

Price and availability

The Xiaomi Smart Band 11 is on sale now in China (from CNY 289, or CNY 339 with NFC), in Europe through Xiaomi’s stores at €59.99 (€79.99 NFC), and in Japan since November 4, with its full global debut at Xiaomi’s November 17, 2026 event in Paris. Xiaomi does not officially sell the band in the United States — the Amazon US units reported so far are third-party imports without a Xiaomi US warranty, and we could not verify an exact, official Amazon listing today, so we are not linking one. In the US, weigh the import price against that missing warranty before buying; in Europe, Xiaomi’s own store is the clean route.