Haylou Watch 3: what to expect from this smartwatch before buying

The Haylou Watch 3 is a smartwatch from Chinese manufacturer Haylou, a Xiaomi subsidiary, aimed at those who want health functionality and connectivity without spending the price of an Apple Watch or Galaxy Watch. It arrived on the market with a clear proposal: health monitoring, quality AMOLED screen and above-average battery life, all at a more accessible price point. If you’re researching this watch to buy in Brazil, the short answer is: it’s worth it for those who prioritize value for money and don’t require a robust app ecosystem.

Haylou built its reputation selling products through Xiaomi and AliExpress, and the Watch 3 represents an evolution of the line with more premium finishing. According to the manufacturer, the watch features a 1.96-inch AMOLED screen, over 100 sports modes and water resistance with 5ATM rating (equivalent to supporting pressure of up to 50 meters deep, ideal for casual swimming and heavy rain). For the Brazilian audience that follows launches and wants a functional device without paying extra, the Watch 3 enters into tough competition with Amazfit, Xiaomi Band and even older Galaxy Watch versions found on sale.

The question isn’t whether it has resources, because it has plenty for the price. The question is whether the execution of these resources is reliable in everyday use and whether support in Brazil compensates for the risks of an imported purchase.

Haylou Watch 3 technical specifications

> Note: some technical specification values were not disclosed by the manufacturer in public channels accessible until publication of this article. Check the complete technical specifications on Haylou’s official page or at the store where you will buy.

Screen and design: the strongest point of the Watch 3

The 1.96-inch AMOLED screen is the main selling point of the Watch 3, and for good reason. AMOLED panels (technology that lights each pixel individually, unlike LCD which uses a single backlight) offer deeper blacks, more vibrant colors and lower power consumption when the background is dark. In this price range, many competitors still use LCD screens, so the Watch 3 stands out visually.

The design follows the current smartwatch aesthetic, with a square case with rounded edges and replaceable band. According to Haylou’s official images, the finish has a more premium look than the price suggests, with sober color options that match work and gym environments. The silicone band is standard for the category, functional but nothing that differentiates it from direct competitors.

What you need to keep in mind is that a beautiful screen in photos and a good screen in practice also depend on maximum brightness. The manufacturer did not publicly disclose the nits value (unit of measurement for brightness), so verify this data before buying, especially if you use the watch outdoors in strong sunlight.

Health and monitoring: declared features versus reality

The Watch 3 brings continuous monitoring of heart rate, blood oxygen saturation (SpO2), sleep and stress. According to Haylou, the set of sensors is capable of detecting basic heart rhythm irregularities and issuing alerts. It’s important to be honest here: health sensors on entry and mid-range smartwatches are indicative, not clinical. They help you get a general sense of your health, but don’t replace medical equipment.

The over 100 sports modes listed by the manufacturer include running, swimming, cycling, yoga and less common activities like fencing and dancing. In practice, what matters is the quality of tracking in the modes you use. For running and walking without integrated GPS (check the technical specifications if the Watch 3 has its own GPS or depends on the phone), distance and pace accuracy can vary. If you’re a runner and need standalone GPS, this is a critical point to check before making your purchase.

The 5ATM resistance allows for swimming in a pool with peace of mind. For diving or more intense water sports, this rating is not sufficient, but for everyday use it is more than adequate.

Battery: autonomy that really makes a difference

Haylou claims up to 14 days of autonomy in typical use for the Watch 3. This number, like any manufacturer data, was measured under controlled conditions, with GPS off, heart rate monitoring at intervals and reduced brightness. In real use, with frequent notifications, active GPS and AMOLED screen at maximum brightness, autonomy drops. Still, getting close to a week of full use would be a solid result for the category.

For comparison, the Apple Watch Series reaches about 18 hours (in versions without extended low-power mode) and the Galaxy Watch Ultra stays around 4 to 5 days in normal use. The Watch 3, if it delivers half the promise, already surpasses Wear OS and Apple in battery life, which is one of the biggest frustration points for premium smartwatch users. Charging the watch twice a week is very different from charging it every day.

Software and Haylou Fun app

The Watch 3 works with the Haylou Fun app, available for Android and iOS. The app centralizes watchface configuration (customizable watch faces), health data analysis, notifications and firmware updates. Apps from smaller Chinese brands usually have interfaces translated to Portuguese, but with varying quality and less refinement than Samsung or Garmin apps.

The ecosystem is the Achilles heel of smartwatches in this category. You won’t find third-party apps like offline Spotify, Strava with deep native synchronization or NFC payments (unless the manufacturer confirms this in the technical specifications, which was not found in public channels). If you use the watch as an extension of your phone for health data and notifications, the Watch 3 fulfills the role. If you want a standalone watch, you’ll be frustrated.

Haylou Watch 3 in Brazil: import, Anatel and warranty

This is the point that requires the most attention from Brazilian buyers. The Watch 3 is not officially sold in Brazil by authorized distributors with a consolidated support network, at least until the date of this publication. Most purchases happen via direct import through AliExpress, Shopee or informal resellers. This implies real risks: without Anatel approval (Brazil’s telecommunications regulatory agency), the product may be held at customs, and the manufacturer’s warranty is rarely honored in Brazil without bureaucracy.

Before buying, check if the product has the Anatel approval number printed on the box or on the sales page. Without it, in addition to the risk of retention, you may have difficulty accessing any technical support. If you buy imported and the product has a defect, the resolution path is more cumbersome than with locally distributed brands.

Import costs also factor in. Electronic products imported above 50 dollars per individual are subject to 20% import tax plus state ICMS, which can significantly raise the final price. Those who prefer ease can explore alternatives that have already arrived in Brazil with an invoice and warranty. Speaking of an ecosystem of connected products with local support, if you’re building a smarter home, it may be useful to also check whether other devices of interest have guaranteed compatibility in Brazil, as we discussed when evaluating the Positivo smart light with Alexa.

Pros and cons of the Haylou Watch 3

Pros:

• Good-sized AMOLED screen for the category
• Declared autonomy above the average of premium competitors
• 5ATM water resistance suitable for casual swimming
• Bluetooth 5.3 for stable connectivity
• Design with more premium look than the price suggests
• Compatible with Android and iOS

Cons:

• No consolidated official distribution in Brazil
• Risk of customs retention without confirmed Anatel approval
• Warranty difficult to claim in Brazil
• App ecosystem limited compared to Galaxy Watch or Apple Watch
• Processor and memory specifications not publicly disclosed
• Import taxation can significantly raise the final price

Competitors and alternatives in Brazil

Prices vary greatly depending on exchange rates, promotions and purchase channel. Check national marketplaces for updated values. The Amazfit GTS 4 Mini and Redmi Watch 4 have a more consolidated presence in Brazil with resellers who issue invoices, which reduces the risk compared to the Watch 3 imported without local support.

If you’re evaluating other gadgets along with the smartwatch and want to better understand the landscape of products with good support in Brazil, it’s also worth taking a look at reviews of devices like the POCO X8 Pro to understand how products from the same Asian chain behave when they arrive with more organized distribution.

Frequently asked questions about the Haylou Watch 3

Does the Haylou Watch 3 work with iPhone?

Yes, according to the manufacturer the Watch 3 is compatible with iOS and Android via Bluetooth. Experience with iPhone is usually more limited on non-Apple smartwatches, with restrictions on notification access and operating system features. For basic health and notification use, it works.

Does the watch have integrated GPS?

Haylou has not publicly confirmed the presence of autonomous GPS on the Watch 3 in the channels consulted for this article. Check the official technical specifications before buying, especially if you’re a runner and need to track routes without your phone.

Is it possible to buy the Haylou Watch 3 with warranty in Brazil?

The manufacturer’s warranty is not easily claimed in Brazil through local technical assistance, as there is no consolidated official distribution. Some resellers on Mercado Livre and Shopee offer their own warranty of 3 to 12 months, but verify the terms carefully. Buying with an invoice and from a reputable reseller reduces risk.

Does the Watch 3 have NFC for payments?

There is no public confirmation of NFC for payments on the Watch 3 in the manufacturer’s materials consulted. If contactless payment on your wrist is a priority for you, this is data you should verify directly in the technical specifications before purchasing.

Is it worth buying the Haylou Watch 3?

The Haylou Watch 3 is a competent smartwatch for those who want an AMOLED screen, good battery life and basic health monitoring without spending R$ 1,000 or more. It delivers visually more than the price suggests and has specifications that, on paper, surpass nearby competitors in some points.

The problem lies in the purchase and after-sales experience in Brazil. Without official distribution, no clear warranty and with risk of import taxation, the final price may approach alternatives with much more reliable local support. If you have import experience, know how to deal with customs risks and don’t care about technical support in Portuguese, the Watch 3 can be a good choice. If you want convenience, an invoice and a place to complain if something goes wrong, there are equally attractive options with distribution in Brazil.

Recommended for: those with import experience, looking for AMOLED screen and long battery life in the R$ 500 range and not dependent on local technical support.

Price range: approximately R$ 300 to R$ 500 in imported purchases, potentially higher with taxation; check marketplaces for updated values in 2026.