The Welly Merck 2.01 Smart Watch is a budget calling smartwatch, best for first-time smartwatch buyers on a budget. Rated 4.1 out of 5 across 82 user ratings. The main drawback: blood pressure and heart rate readings can be inaccurate. We scored it 3.9 out of 5.
Taking calls on your wrist and reading messages on a big 2.01-inch screen is what this watch does well. Its health numbers are another matter: heart rate, blood oxygen and especially blood pressure are rough estimates, and the maker itself says it is not a medical-grade device.
NoFussDeal rates the Welly Merck 2.01 Smart Watch 3.9 out of 5 at $69.99. Last updated September 26, 2026.
A large, square 2.01-inch touchscreen shows notifications, health data and menus, and you can switch dials in the app or use a photo from your phone as the watch face.
A built-in microphone and speaker let you answer and make calls from the watch, and it shows alerts from SMS, WhatsApp, Facebook, Twitter and other apps.
Optical sensors estimate heart rate, blood oxygen and blood pressure, and the watch tracks sleep, steps, calories and distance.
More than 100 sport modes cover everything from walking and running to gym work, and IP67 water resistance means sweat, rain and hand-washing are no worry. Distance and routes use your phone's GPS.
Its sleek design and functionality stand out. Welly Merck lists the gps geotagging functionality as GPS Via Smartphone. Two of the five owner reviews we read mention it. All of them gave the product four or five stars. Score 87: we started at 82 and added 5 because the owner reviews that mention it are positive.
Welly Merck lists the battery cell composition as Lithium Ion and the battery power as 380 milliamp_hours. Three of the five owner reviews we read mention it. All of them gave the product four or five stars. Score 87: we started at 82 and added 5 because the owner reviews that mention it are positive.
Welly Merck lists the band material type as Silicone and the case material type as Plastic or Metal. Two of the five owner reviews we read mention it. All of them gave the product four or five stars. Score 87: we started at 82 and added 5 because the owner reviews that mention it are positive.
Two of the five owner reviews we read mention it. All of them gave the product four or five stars. Score 87: we started at 82 and added 5 because the owner reviews that mention it are positive.
Welly Merck lists the connectivity technology as Bluetooth and the wireless provider as du. One of the five owner reviews we read mentions it, and that owner gave the product four or five stars, so the complaints come from the wider group of buyers. None of the reviews we read say what goes wrong, so this score rests on the buyer ratings. 26% of all ratings are three stars or fewer, which is where…
Welly Merck lists the connectivity technology as Bluetooth and the wireless provider as du. One of the five owner reviews we read mentions it, and that owner gave the product four or five stars, so the complaints come from the wider group of buyers. None of the reviews we read say what goes wrong, so this score rests on the buyer ratings. 26% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 76: we started at 82 and took off 6 because opinion is split.
None of the five owner reviews we read mention it. 26% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 70: we started at 82 and took off 12 because it draws mostly complaints.
65% of ratings are five stars and 9% are four. 8% are three stars and 18% are one or two. A sizable share of ratings sit low, so weigh the drawbacks below as heavily as the praise. Score 82: its 4.1 star average on a 100 point scale.
Based on 82 Amazon customer ratings, averaging 4.1 out of 5, recorded 12 September 2026. See the reviews on Amazon
| 5 stars | 65% | |
|---|---|---|
| 4 stars | 9% | |
| 3 stars | 8% | |
| 2 stars | 8% | |
| 1 stars | 10% |
I loved all the health benefits and easy to use once set up. What I didn't like was there isn't a temperature reading that would be nice to have and there isn't a lot of faces to choose from… Read it on AmazonXiomara Serpa · April 9, 2024 · Verified
It has everything I need. I can answer and make calls directly from my wrist, which is super convenient when I'm on the go. The heart rate and blood pressure monitoring are also great featur… Read it on Amazontree.lover · April 29, 2024 · Verified
Just unboxed my new Welly Merck smartwatch and I’m already impressed. The setup was a breeze, and it has a really sleek design that feels modern and not too bulky on the wrist. Loving the vi… Read it on AmazonMILA · February 23, 2024 · Verified
It goes from the gym to work seamlessly, thanks to its sleek design and durable build. The built-in GPS is amazing for tracking my runs and hikes, and the fitness tracking features keep me m… Read it on AmazonSolvig · April 4, 2024 · Verified
Replacing an older watch as battery life has dropped. This one is not very accurate on blood pressure, heart rate, heart rate alerts. Takes a while to figure out that you went to sleep. All … Read it on AmazonAmazon Customer · March 3, 2024 · Verified
Attach the charging cable to the contacts on the back and charge fully before first use. Hold the side button to switch it on.
Install the companion app named in the quick-start guide, on an Android 4.4 or later phone or an iPhone running iOS 8.2 or later. Allow Bluetooth, notification and location permissions when asked.
Open the app, add the device and pair the watch. Then pair the watch's calling function in your phone's Bluetooth settings too, so calls route through it.
Add your age, height and weight in the app so calories and distance are estimated for you, and set your units and time format.
Pick which apps can send alerts to the watch, such as SMS, WhatsApp or Facebook, and set a Do Not Disturb window for the night.
Choose a dial in the app, or set a photo from your album as the background and sync it to the watch.
Only for some buyers: we score it 3.9 out of 5. The Welly Merck smart watch is good at the everyday things: a big, bright 2.01-inch screen, Bluetooth calls from the wrist, message alerts, music and camera control, and a long list of sport modes, all in a sleek, tough body with IP67 water resistance.
Rated 4.1 out of 5 across 82 user ratings, with 65% giving it five stars and 10% one star.
Blood pressure and heart rate readings can be inaccurate. Some units suffer connection drops and reliability problems.
Rinse and dry the watch after heavy sweat or salt water. Wipe the screen with a soft, slightly damp cloth.
In the app, pick a photo from your album and set it as the dial, which makes up for the modest built-in selection.
Smart Watch for Women & Men(Answer/Make Call), 1.8" Screen Activity Tracker unboxing & instructions
Pduesp
Smart Watch Fits for Android and iPhone, IP68 Waterproof Smartwatch for Women Men 100+
Scotts Honest Reviews
UNBOXING: Smart Watch with Fitness Tracker Review | Waterproof Touch Screen Android or iOS
KG Simple Reviews
The best Smart Watch with Answer/Make Calls Smart Fitness Tracker Watches the best smartwatch
PhoneTech Central
Military Smart Watches for Men (Answer/Make Call)
It's the Dave Show
Amazing cheap Smart Watch from Amazon #shorts
TechLink
The Welly Merck smart watch is good at the everyday things: a big, bright 2.01-inch screen, Bluetooth calls from the wrist, message alerts, music and camera control, and a long list of sport modes, all in a sleek, tough body with IP67 water resistance. Setup is easy and battery life of a few days is typical. Its health data is the weak spot. Blood pressure, heart rate alerts and sleep detection can all be off, and the maker says it is not a medical device. Connection drops also affect some units. Buy it as a convenient phone companion and activity nudge, not as a health monitor.
A likeable budget smartwatch for calls, notifications and basic tracking. Enjoy the convenience, and keep a proper cuff monitor for real blood pressure readings.
Check price on Amazon
