OLEVS Smartwatch F400
44/49mm Health Smartwatch • Heart Rate Monitor • SOS & IP67 Waterproof
Original price was: $139.0.$89.0Current price is: $89.0.
Save: $50.0 (36%)

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- 🛡️ 12-Month Watch Warranty
Eligible traditional watches purchased directly from Olevsstore.com include a 12-month movement warranty, plus dedicated after-sales support.
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Eligible purchases can be returned within 30 days, subject to our Returns & Refunds Policy.
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Thousands of customers choose OLEVSSTORE because they value reliable service, genuine products, and long-term support. Show more +










Overview
The OLEVS Smartwatch F400 is a health-focused smartwatch designed for everyday wellness monitoring and convenient communication. Featuring a 1.55-inch square display with a clear 360 × 360 resolution, it offers an easy-to-read interface suitable for users of all ages.
Compatible with both Android and iOS devices, the F400 includes essential health and lifestyle features such as heart rate monitoring, blood pressure tracking, body temperature monitoring, sleep tracking, calorie tracking, and an SOS function. It also supports Bluetooth calling, message notifications, call reminders, altitude measurement, and daily activity tracking. Choose from silicone, leather, steel, or bamboo-style bands to match your personal style.
Ideal for daily wear, health monitoring, work, travel, or staying connected with family, the F400 combines practical wellness features with a comfortable and versatile design.
Key Features
- 1.55-inch HD Display (360 × 360)
- Heart Rate Monitoring
- Blood Pressure Monitoring
- Body Temperature Monitoring
- SOS Emergency Function
- Bluetooth Calling Support
- Sleep & Calorie Tracking
- IP67 Water Resistance
- 380mAh Rechargeable Battery
- Compatible with Android & iOS
Specifications
| Specification | Details |
|---|---|
| Brand | OLEVS |
| Model | F400 |
| Product Type | Health Smartwatch |
| Display | 1.55-inch |
| Screen Resolution | 360 × 360 |
| Screen Size | 44–49mm |
| Case Shape | Square |
| Case Material | Alloy |
| Band Material | Silica Gel / Leather / Steel / Bamboo |
| Operating System | Android, iOS |
| Battery | 380mAh |
| Water Resistance | IP67 |
| Camera | No Camera |
| Functions | Calendar, Power Reserve, Sleep Tracker, Speed Measurement, Call Reminder, Answer Call, Push Message, Message Reminder, Dial Call, Altitude Meter, Heart Rate Tracker, Calorie Tracker, Blood Pressure Monitoring, Body Temperature Monitoring, SOS |
Tags
smartwatch, health smartwatch, ecg smartwatch, heart rate monitor, blood pressure monitor, body temperature monitor, sleep tracker, calorie tracker, bluetooth calling smartwatch, ip67 smartwatch, square smartwatch, silicone strap smartwatch, leather strap smartwatch, steel strap smartwatch, android smartwatch, ios smartwatch, 49mm smartwatch, elderly smartwatch
FAQs
1. Does the OLEVS F400 include a warranty?
Yes. The OLEVS F400 comes with a 12-month warranty covering manufacturing defects.
2. Is the F400 waterproof?
Yes. It is rated IP67 for protection against dust and water splashes. It is not designed for swimming or diving.
3. What health features does the F400 offer?
The F400 includes heart rate monitoring, blood pressure tracking, body temperature monitoring, sleep tracking, calorie tracking, and an SOS emergency function.
4. Can I answer phone calls from the smartwatch?
Yes. The F400 supports Bluetooth calling, allowing you to answer and make calls when connected to a compatible smartphone.
5. How can I get product support?
Our customer support team is available to help with setup, troubleshooting, and after-sales service.
6. How do I track my order?
After your order is shipped, you’ll receive a tracking number to monitor your delivery online.













A**************a -
I received my parcel, good packaging and no any damage encounter
A**********h -
I received this watch today, and as soon as I unboxed it, I was truly impressed. The build quality is outstanding, the calling sound quality is excellent, and all of its features are amazing.
I’m very happy that I purchased this watch from Olevsstore.com. The build quality exceeded my expectations, and I really like all of its features.
I highly recommend this watch. If anyone is thinking about buying it, you can purchase it with complete confidence. Considering its price and the quality it offers, it provides incredible value for money. It’s truly an amazing product.
J***************r -
Good product
Quick delivery
Good price
W********G -
The experience has been nothing short of five stars. If I could give more, I absolutely would. Tony is a fantastic guy who was incredibly helpful throughout the entire buying process on his website. I purchased two watches, and I'm delighted with both of them. They look absolutely stunning, the quality is excellent, and they far exceeded my expectations. Honestly, a $100 watch looks like it could cost $50,000. The craftsmanship and attention to detail are truly impressive. I was also very happy with the fast shipping and the outstanding customer service. From start to finish, the experience was smooth, professional, and enjoyable. I would definitely recommend this shop to anyone looking for a high-quality watch at an incredible value. Thank you, Tony!
r***t -
Perfect for all references, thank you for your work, packaging is excellent, I have sent you the entire receipt.


Ja*******ron -
Was very surprised - saw a review on Reddit for the e400 and so on a whim I tried it out. Received in exactly 2 weeks. Now that I've charged it and tried it out, it's awesome! The blood glucose exactly matches my meter when I pick my finger! The o2 sensor works great! And the ecg also works great! Absolutely could not recommend this smartwatch any higher - you won't be disappointed! & I did not / will not receive any thing for this review!
j***************E -
Great product, high quality and very fast service and delivery I would highly reccomend


S***********n -
Beautiful product, fast delivery. I only received it recently, but it still works. Since it is an automatic and thus a mechanical watch, time deviates a bit but that is normal. To take into account: the number of years only goes so far, and the date (right dial) is not the easiest to read. But hey, that's something you can see on the picture yourself too. The watch hasn't been wet yet (and as with very watch, I intend to keep it that way), so I can 't speak of waterproofness. Only sad it says that its a chronograph on the dial, because it isn't a chronograph. Left dial shows the day, the below dial shows the hours (24) and in the upper part of the dial you can see the sun and the moon move along. The right dial - a bit hard to read, see above - shows the date. All in all, at this point in time (pun intended) really satisfied with the watch. It is beautiful and does what is has to do, showing the time.


Edit: please note: buy the watch at the correct company: Olevsstore.com! As mentionned on their website, all the others are fake!!! So don't buy on Aliexpress, Olevs.com, or wherever you can find them. They advertise it on their website too, but sometimes a search shows you the fake ones first!!!
Edit 2: one small think I don't really like is that there is no micro-adjustment on the bracelet like with some other watches. Luckely for me, when I removed the necessary links (with the provided tool!!) it fits without needing the micro-adjustment. But others might need the micro-adjusment. The provided tool worked for taking the links out, but is is still a plastic tool, so I had to resort to something else to get finisch it decently in the end. Nonetheless, a tool was provided and that's something you don't get with other brands as far as I'm aware of.
A******a -
Very nice watches for the price. Delivery was also acceptable. thanks for the attention to detail of my order.

B***********e -
I have the green face one and the black face one both of them are really nice I definitely recommend them

