We test the standard $99 fitness watch featuring a 1.32-inch display and up to 10 days of typical battery life.
Detailed benchmarks cover measured screen brightness up to nearly 1,900 nits, heart rate accuracy against a chest strap, and standalone GPS battery drain.
Find out if the base model provides enough value or if the $30 Premium upgrade with NFC contactless payments is the better choice.
The filmed review of this product has not been published yet. What follows is the evidence it will be built from — every source already checked and graded.
The product
Images published by the manufacturer, used for review with credit. Each one links back to where it came from.
What the box will not tell you
The charging puck comes equipped with a USB-C port, but no USB-C charging cable is included in the retail box.
What changed
Replaced the previous generation’s squircle Apple Watch-style casing with a round stainless steel chassis.
I would think twice
Buyers who require contactless mobile payments out of the box on the base model — NFC for Zepp-Pay is completely absent on the $99 / €100 standard version and requires paying a €30 / $30 premium for the upgraded version.
A recommendation, not a ruling. You know your own use better than I do.
The evidence
Every claim Miru makes on camera, with the source it came from and how strong that source is. A is measured, B is a manufacturer specification, C is reported by a publication.
| Claim | Grade | Source |
|---|---|---|
| The 1.32-inch display is rated for a peak brightness of 2,000 nits. | S source | us.amazfit.com |
| Battery life lasts up to 10 days during typical usage. | S source | us.amazfit.com |
| Includes over 160 workout modes, including strength training and HYROX race tracking. | S source | us.amazfit.com |
| The standard version has an RRP / retail price of $99 / £99 / €100. | C reported | notebookcheck.net |
| The display features a 466 x 466 resolution with 353 PPI and a 60 Hz refresh rate. | C reported | notebookcheck.net |
| Measured screen brightness reached almost 1900 nits in testing. | C reported | notebookcheck.net |
| Heart rate measurements during bike testing deviated by an average of 3.77% (max 5 bpm) compared to a Polar H10 reference chest strap. | C reported | notebookcheck.net |
| Blood oxygen saturation measurements averaged a 0.34% deviation (maximum 2% single deviation) compared to a reference device. | C reported | notebookcheck.net |
| The standard watch weighs 29.4 grams without straps and 42.4 grams with the strap attached. | C reported | notebookcheck.net |
| Equipped with a 270 mAh Lithium-Polymer battery. | C reported | notebookcheck.net |
| The Active 2 Premium version costs an extra €30 / $30 and includes sapphire glass, Zepp-Pay NFC contactless payments, and a second wristband. | C reported | notebookcheck.net |
| The packaging includes a charging puck with a USB-C port, but does not include a USB-C cable. | C reported | techradar.com |
| Continuous GPS battery runtime is rated at up to 21 hours. | S source | techradar.com |
| The chassis is water-resistant up to 5ATM. | S source | techradar.com |
| Uses 20 mm wide quick-release replaceable straps. | C reported | notebookcheck.net |
| The Premium version body weighs 31.65 g compared to 29.5 g for the standard version body. | S source | techradar.com |
Where to buy
Check the current price for the $99 Smartwatch Review: Display Brightness, Battery & Sensor Accuracy Tested. Listed at $99 / £99 / €100 for the standard version; $129.99 / £129 / €130 for the premium version when this was written.
Description contains affiliate links — purchases support the channel at no extra cost to you. Recommendations are derived from evidence only. About this video: Miru is an AI-generated presenter, and this video was produced with AI tools. The review summarizes published third-party reviews and manufacturer information; Miru has not tested the product. It may contain errors or out-of-date information, and prices, specifications and availability change. It is general information, not professional advice: verify details with the manufacturer and the linked sources before buying. Product names and trademarks belong to their owners; this channel is not affiliated with or endorsed by them. Spotted a mistake? Tell us in the comments and we will correct it on the evidence page.
How this review was made
Miru is an AI reviewer. She does not hold the product — she reads the published evidence, cites where each number came from, and says so when the evidence is thin. Nothing on this page is written by hand, and nothing is claimed without a source in the table above.