Amzhero Health Fitness Tracker Review: Sleep, Waterproof

The mid-afternoon glance is what a tracker like this is really for: you look down, and it already knows what your heart has been doing since breakfast. The Amzhero Health Fitness Tracker tracks that around the clock, and the morning after it can tell you what the night was made of, split into REM, deep and light phases. It's rated 5ATM, so it doesn't have to come off at the pool either. What it can't do is tell you where you went, because there's no GPS in it, and nothing it records travels out to a third-party app.

Blood oxygen and blood pressure sit on the same feature list, and both band sizes ship in the box. The hardware wrapped around all that is deliberately plain: one 1.47-inch digital display, physical buttons, a silicone band on a buckle, Bluetooth out to a phone. For most of what people buy a tracker like this to do, plain is enough.

Start with what the Amzhero Health Fitness Tracker measures

What this device offers to measure is the strongest part of its case. Heart rate is tracked around the clock, which means the daily curve fills itself in whether or not you remember to check. Blood oxygen and blood pressure sit on the same feature list. Sleep gets a tracker of its own, and the activity side is handled by a step tracker and a pedometer.

How you get at any of it is deliberately plain. There's one 1.47-inch digital display, physical buttons for input, and a silicone band on a buckle clasp. The connection out is Bluetooth, to a phone. That's a short hardware list, and it's the shape of the whole device.

Set those two lists side by side and they pull in different directions. On paper the health side of the Amzhero Health Fitness Tracker reads like a device with ambitions, while the hardware side reads like one built to a tight brief. Neither observation is a criticism on its own. What matters is which of the two halves you're actually buying, and whether the plain one sets a limit you'll run into.

Round-the-clock heart rate is the entry I'd weight highest, and not because any single reading is interesting. Sampled all day it turns into a resting trend, and to my mind a resting trend is one of the few numbers off a wrist that gets more useful the longer you wear the thing. That cuts both ways, though: a sensor list is only worth what the hardware around it actually lets you collect, and keep.

Wear it to bed before you worry about the bulk

Sleep tracking is why a lot of people buy a tracker at all, and here it doesn't come back as a single duration figure. The night gets broken into REM, deep and light phases, which is the difference between knowing how long you were in bed and knowing what that time was worth. Stress readings and relaxation reminders sit alongside it, so the picture runs across the whole day instead of stopping when a workout ends.

None of that happens unless the thing stays on your wrist overnight, which is where battery life matters more than a spec line makes it sound. It runs a long stretch between charges rather than needing constant top-ups, and sleep data is the first thing a nightly charging habit takes away from you.

Fit is the other half of it. Both a small and a large silicone band come in the box, and that's a more useful inclusion than it looks: a buckle clasp gives you a fixed set of holes to choose between, so two bands means most wrists land somewhere in the middle of one instead of at the last hole of the only one there is. For something meant to be worn asleep as well as awake, that isn't a cosmetic detail.

The design does run slightly bulky, though, and that's a fault I'd weigh more heavily for overnight wear than for daytime. It's mild. On its own it wouldn't talk me out of the device. Still, if you already dislike sleeping in a watch, nothing here is going to change your mind about that.

Take the 5ATM rating at face value

Waterproofing is one of the specs I'd least like a buyer to have to guess at, and on this one there's no guessing to do. The 5ATM rating is stated plainly and the coverage isn't hedged: swimming, showering and ordinary exposure to the elements all sit inside it. Anyone who's tired of taking a tracker off at the edge of the pool can stop worrying right there.

The band suits that job. Silicone on a buckle is the pairing I'd want on anything rated to go into water, and it's what the Amzhero Health Fitness Tracker ships with, in two sizes. Input is by physical button, which to my mind is the right choice on a device you'll be using with wet hands.

What the listing doesn't spell out is how a swim is handled as an activity rather than as a condition, and I'm not going to fill that silence with a guess. What it does spell out is the rating, and the rating is the part buyers are usually anxious about. Those are two different questions, and only one of them has a documented answer.

Judge it on what's actually claimed, then, and it comes through clean: the device is rated for the water, the band is right for the job, and there's nothing here I'd warn a buyer about. That counts for more than it reads on a spec sheet, because a rating you can rely on is the difference between a tracker that stays on all day and one that comes off at every sink.

Expect basic notifications and a closed record

The phone side is where this device gives up the most ground. The link is Bluetooth, the phone is what the tracker syncs with, and notifications arrive across that link. They're basic.

Basic is the accurate word rather than an insult. What you get is an alert on the wrist instead of a second phone strapped to your forearm, and for plenty of buyers that's the right amount. What it rules out is anyone shopping for a smartwatch experience in disguise. Treat the notification layer as a convenience, not as a reason to buy.

The heavier problem is the absence of third-party app integration. Whatever history the Amzhero Health Fitness Tracker builds, it builds in one place, and it doesn't feed onward into a platform you might already keep your training or your health records in. On a device whose whole point is a long line of readings accumulating month after month, that's what I'd think hardest about before buying, and it's the single biggest reason my score lands where it does rather than higher.

None of that makes the sensing worse. It does make the device a closed one, though, and closed systems are comfortable right up until the day you want out of one. If you've never moved a health record between apps and never intend to, this costs you nothing. If you have, you already know exactly what I'm describing.

Skip it if you want GPS on your wrist

There's no built-in GPS in the Amzhero Health Fitness Tracker. It doesn't fix its own position, and that's a hardware fact rather than something a software update reaches around later.

What the listing puts forward on the activity side is a step tracker and a pedometer. For a buyer whose goal is a daily count and a trend that holds its shape over months, those are enough, and I wouldn't pretend otherwise to score a point. Plenty of people wear a tracker precisely because they want a number at the end of the day and nothing more elaborate than that.

For anyone else, though, this is a clean disqualification rather than a disappointment. If you want position data coming off the device on your own wrist, you want a different device, and I wouldn't try to argue you across that gap. A disqualification is also the better kind of fault to run into: it sits in a spec list where you can see it beforehand, instead of surfacing slowly over the first month of ownership.

Color options are limited as well, and this one is Spaceblack. Set against a missing GPS and a closed data path, though, the color of the case isn't what decides anything here, and I wouldn't let it.

Final Verdict

The buyer for this is easy to describe: someone who wants a health record that keeps filling in, night and day, without a charging ritual or a rule about taking it off near water. On that job the Amzhero Health Fitness Tracker is genuinely good, and I'd recommend it there with very little hedging. The two things it won't do are hardware facts rather than software ones. No GPS means no GPS, this year and next. A closed record means the months of readings it builds stay where they are. Neither will trouble someone who wanted a health record in the first place. Both will end the conversation for anyone who wanted a running watch. That's the whole calculation.