This Xiaomi Watch S5 review covers a smartwatch built around a simple idea: looking less like a gadget trying to pass as a watch, and more like a genuine watch that happens to be smart. That distinction matters more than it might sound, since a lot of smartwatches still read as obviously tech first the moment you glance at someone’s wrist. The Watch S5 is aiming for something closer to traditional watchmaking, with the smart features built in rather than front and center.
We spent time going through the display, battery life, design variants, sensor package, and how it holds up against both traditional smartwatches and the newer wave of screenless trackers to see whether it earns that positioning.
Display and Design
The Xiaomi Watch S5 features a 1.48-inch AMOLED display running at 2,500 nits peak brightness, with a 2.6mm bezel that’s 40 percent narrower than the previous generation. That narrower bezel makes a real visual difference, since it lets the display feel like it extends nearly to the edge of the watch face rather than sitting inside a noticeably thick black border, a common giveaway on cheaper smartwatches.
The forged stainless steel frame comes in four distinct styles, each with a genuinely different identity rather than reading as a simple color refresh of the same design. There’s a Ceramic Blue version with a zirconia ceramic bezel paired with a leather strap, aimed at a more formal, dressed up aesthetic. There’s also a Jungle Green variant with a forged carbon bezel and a hybrid band, leaning noticeably sportier. Having genuinely distinct styles rather than just different strap colors is a smart move, since it lets the same core watch fit into very different wardrobes and lifestyles.
At 2,500 nits, outdoor visibility is a genuine strength. Even in direct summer sunlight, the display stays legible without needing to cup a hand over the screen to read the time or check a notification, something plenty of smartwatches at lower brightness levels still struggle with.
Battery Life That Actually Holds Up
Battery life is where the Watch S5 makes its strongest case. The 815mAh battery delivers up to 21 days under light use, which represents a 68 percent improvement over the previous Watch S4. That’s a genuinely significant jump, moving the device from a smartwatch you think about charging weekly to one you can largely forget about for the better part of a month under lighter usage patterns.
In real world testing with Always On Display and full health tracking running continuously, battery life drops to around six days before needing a charge. That’s still a solid result for a smartwatch running a full sensor suite around the clock, and it compares favorably against many rivals that require charging every one to three days under similar conditions.
Charging itself is handled through a small magnetic puck rather than a full cradle, and a short 15 to 20 minute top up is generally enough to recover a meaningful chunk of battery if you’re in a hurry, though Xiaomi hasn’t marketed a specific fast charge figure the way some competitors do.
Sensors and Fitness Tracking
The Watch S5 comes with a five-system GNSS setup for accurate location tracking during outdoor activities, 5ATM water resistance suitable for swimming, and 150 different sports modes covering a wide range of activities beyond just running and cycling. An updated four-LED heart rate sensor, built on the same hardware platform as the flagship Xiaomi Watch 5, rounds out the core health tracking package.
Having the same heart rate sensor hardware as Xiaomi’s actual flagship watch is notable, since it suggests the health tracking accuracy on the S5 shouldn’t lag meaningfully behind Xiaomi’s top tier model, even though the S5 sits a tier below on price and some other features.
Sleep tracking covers stage detection, including light, deep, and REM sleep, along with a nightly score meant to summarize overall sleep quality. Stress tracking and guided breathing exercises round out the wellness side of the feature set, alongside SpO2 monitoring that can run passively throughout the day or on demand.
Build Quality and Everyday Durability
The forged stainless steel frame feels noticeably more premium in hand than the aluminum cases found on many competing smartwatches in a similar price range. Xiaomi’s choice to use genuinely different bezel materials across the four style variants, ceramic on one, forged carbon on another, rather than simply changing the case color, gives the watch a level of perceived craftsmanship that’s uncommon outside of considerably pricier luxury smartwatch lines.
5ATM water resistance covers swimming and general daily water exposure like hand washing and rain, though it’s not rated for high pressure activities like scuba diving. The sapphire crystal display cover on select variants adds scratch resistance that should hold up well against the everyday bumps a watch face takes from wrists brushing against doorframes, desks, and countertops.
Comparing the Watch S5 to Its Predecessor
Stacked against the Watch S4, the improvements are focused but meaningful rather than a ground up redesign. The narrower bezel is the most visually obvious change, making the S5 look noticeably more modern sitting next to its predecessor. The 68 percent jump in rated battery life under light use is the headline functional upgrade, addressing what was likely the most common complaint about the S4 from existing owners.
The shared heart rate sensor hardware with Xiaomi’s flagship Watch 5 is also new to this generation, meaning health tracking accuracy should be a genuine step up from the S4 rather than an identical sensor simply carried over. If you already own a Watch S4 and it’s still working well, the improvements here are real but arguably not urgent enough to justify an immediate upgrade unless the battery life jump specifically solves a pain point you’ve been experiencing.
How It Stacks Up Against Other Screenless and Low Profile Wearables
The broader wearable market has been splitting in two directions lately. On one side, screenless trackers like the Fitbit Air have gained traction by stripping away the display entirely in favor of simplicity and long battery life, something we covered in depth in our Fitbit Air review and our full Fitbit Air vs Oura Ring vs Whoop comparison. On the other side, watches like the Xiaomi Watch S5 are taking the opposite approach, keeping a full display but making the overall design feel less obviously tech forward.
Both approaches are chasing a similar underlying goal from different directions: making health and fitness tracking feel like a natural part of daily life rather than something that visually announces itself. The right choice between the two really comes down to whether you want the convenience of a screen for notifications and quick glances, or whether you’d rather trade the display away entirely for maximum battery life and minimal bulk on your wrist.
Compared directly against a screenless option like the Fitbit Air, the Watch S5 trades away some of that ultra long battery life and minimal weight in exchange for a genuinely useful always available display, full notification support, and a broader range of built in sports modes. Neither approach is objectively better. It comes down to whether the convenience of glancing at your wrist for the time and notifications outweighs wanting the absolute lightest, longest lasting wearable possible.
Software and Companion App Experience
The Watch S5 runs through Xiaomi’s own health and fitness companion app, which handles everything from daily activity summaries to sleep tracking and workout history. The app experience has matured significantly over recent Xiaomi wearable generations, offering clear visualizations of trends over time rather than just raw daily numbers.
Notification support covers the essentials you’d expect from a modern smartwatch: calls, messages, and app alerts, along with quick replies where your phone’s operating system supports it. It’s not attempting to be a full smartphone replacement on your wrist, which fits the broader positioning of the device as a watch first, smart device second.
The app also includes a training load and recovery estimate feature, aimed at helping more serious exercisers avoid overtraining by factoring in recent workout intensity alongside sleep quality and resting heart rate trends. It’s a lighter touch version of the kind of recovery coaching found in dedicated athletic wearables, but a welcome addition for anyone using the Watch S5 for structured training rather than just casual daily tracking.
Pricing and Value
Xiaomi has positioned the Watch S5 as a premium mid-range option, priced below true luxury smartwatches but above the company’s more basic fitness band offerings. Given the battery life improvements, the sensor parity with Xiaomi’s flagship watch, and the genuinely differentiated design variants, the value proposition is strong for anyone who wants a smartwatch that doesn’t scream “gadget” the moment someone notices it.
Compared to premium competitors from Apple and Samsung, the Watch S5 undercuts both considerably on price while matching or exceeding them on battery life, an area where Apple Watch in particular has historically lagged behind. Where it can’t compete is app ecosystem depth, since both Apple and Samsung benefit from significantly larger third party developer support for their respective smartwatch platforms.
Who Should Buy the Xiaomi Watch S5
The Watch S5 makes the most sense for anyone who wants genuine smartwatch functionality without a design that looks obviously like tech on their wrist. The Ceramic Blue variant in particular suits anyone who wants a watch that can pass in a professional or formal setting, while the Jungle Green sportier option fits an active lifestyle without sacrificing the same core hardware.
It’s a slightly harder recommendation if raw battery longevity beyond a week matters more to you than having a full color display, in which case a screenless tracker might serve you better. It’s also a harder recommendation for anyone deeply invested in the Apple or Samsung app ecosystems, since switching to Xiaomi means giving up access to those platforms’ broader selection of third party watch apps. But for anyone who wants the full smartwatch experience with meaningfully improved battery life and a design that holds its own against watches costing considerably more, the Watch S5 earns its spot on the wrist.
Final Verdict
The Xiaomi Watch S5 succeeds at its core goal. It looks and feels like a genuine watch first, with smart features integrated thoughtfully rather than dominating the design. The 21-day battery life claim, backed by a still respectable six days under heavy Always On use, puts it ahead of a lot of competitors in a category where battery anxiety remains a common complaint. Combined with flagship level sensor hardware and genuinely distinct style options, it’s one of the more compelling smartwatches to arrive in 2026.
Frequently Asked Questions
How long does the Xiaomi Watch S5 battery last? Up to 21 days under light use, or around six days with Always On Display and full health tracking running continuously.
What display does the Xiaomi Watch S5 have? A 1.48-inch AMOLED display with 2,500 nits peak brightness and a bezel 40 percent narrower than the previous generation.
What styles does the Xiaomi Watch S5 come in? Four distinct styles, including a Ceramic Blue version with a zirconia ceramic bezel and leather strap, and a Jungle Green version with a forged carbon bezel and hybrid band.
Is the Xiaomi Watch S5 waterproof? It has 5ATM water resistance, making it suitable for swimming and everyday water exposure, though it’s not rated for high pressure activities like scuba diving.
How many sports modes does the Xiaomi Watch S5 support? 150 different sports modes.
Is the Xiaomi Watch S5 better than a screenless tracker like the Fitbit Air? It depends on your priorities. The Watch S5 offers a full display and notification support with strong battery life for its category, while a screenless tracker like the Fitbit Air trades the display away entirely for even longer battery life and a lighter, simpler design.
How does the Xiaomi Watch S5 compare to the Apple Watch? The Watch S5 costs considerably less and offers longer battery life, while the Apple Watch benefits from a much larger third party app ecosystem and deeper integration if you already use an iPhone.
