LEMFO LEF 3 Android Smartwatch


  • This product is available at Alitems, eBay, Amzn.
  • At alitems.com you can purchase LEMFO LEF3 for only 129.99, which is 18% less than the cost in Amzn ($159.00).
  • The lowest price of LEMFO LEF 3 was obtained on November 17, 2019 5:00 pm.

The LEMFO LEF 3 is a standalone smartwatch running a customized Android 7.11 operating system. Users will have full access to the Google Play Store and all of the functions of a smartphone inside of a smartwatch. It has a 1.39″ AMOLED screen with a resolution of 400*400 and a body made of stainless steel.




The LEMFO LEF 3 has a stainless steel casing with Silica Gel straps. It’s a simplistic looking smartwatch with two physical buttons and a 2MP camera between them. The 2MP camera will take decent photos if you need that functionality from time to time, but my position is that the cameras need to be removed if they aren’t front-facing.

LEMFO has classified the LEF 3 as a fashion device but depending on the color you purchase, it can also be classified as a sports watch. The two color options are Black and Silver. Also, the LEMFO LEF 3 isn’t as bulky as some of the other full Android smartwatches, which is probably why it’s so popular, and almost always sold out.

On the back, you’ll find the sim card slot, heart rate monitor, and the four-pin connector for charging and data transfer. The LEF 3 doesn’t come with a charging dock; instead, it ships with just a USB cable.

LEMFO LEF 3 Stainless Steel


The LEF 3 is running the MediaTek 6739 processor with a 600mAH battery. This isn’t the MediaTek 6739 + NRF52840  dual processor setup that offers the two operating modes, but LEMFO claims 48 hours of standby time and 10 hours of usage time. Ultimately, your battery life will depend on how you use and optimize your watch.

Applications using 4G and push notifications drains the battery fast. You can turn on the battery saver, but then you won’t get all of your notifications and you’ll have to open your applications to get updated information. If you optimize it properly, you should have no problem getting through the day.


The LEMFO LEF 3 comes with 1GB of ram and 16GB of internal storage. Although these resources are low compared to other smartwatches in this category, the watch feels responsive, and you should have enough storage for media files and applications.

Navigation is fluid, but it will take some time to figure out the menus. Swiping up will take you to health data, left goes notifications, down goes to quick toggles, right goes to the app drawer, and right again to health applications. And, since it’s a modified Android operating system, you cannot change the widgets or add new ones.

Some applications don’t take advantage of the full display and this usually happens with apps installed from the Play Store. You’ll often need to use the built-in application adapter by holding down the “power button” and selecting the icon at the top of the screen. It changes the orientation of the app from a circle to a square, allowing you to see more of the application’s content. See the Janus & Lokmat X360 review for pictures of what this looks like.

LEF 3 has an IP67 rating called “Life Waterproof.” This means that the device is suitable for sweat and light rain but not for high-velocity water sports. The bands on the LEMFO LEF 3 are also not replaceable since the antennas are inside.


The LEF 3 has a 4G LTE radio unlocked for any GSM carrier. Check the product pages to see if your area supports the bands. In the United States, T-mobile, AT&T, Cricket, and MetroPCS work fine but depending on the area, you might get LTE or 3G.

Bluetooth 4.0 is available for using headphones or sending and receiving files, however, there is no Bluetooth calling with any Android 7.1.1 devices due to Google’s restrictions. Maybe that will change when devices with newer Android versions are released. Right now, only devices with Android 5.0 have Bluetooth calling.

GPS works excellent with Google Maps, Uber, Yelp, etc, but not with the built-in fitness applications provided by LEMFO. You’ll have to install Google Fit or wait until they push out an update. Most Android smartwatches have this issue so this isn’t a LEMFO specific issue.


Fitness Applications

Android smartwatches come with their own fitness applications with activities such as Outdoor Running, Walking, Indoor Running, Bike Riding, and a few others. If you want to track your distance using GPS, the watch doesn’t use the pedometer instead of the GPS module. At some point, the manufacturer will push out an update to fix this. In the meantime, you can use Google Fit if you need GPS tracking.

The LEF 3 uses the WiiWatch 2 companion app to pair with your smartwatch; however, pairing them restricts some of the smartwatch’s capabilities. You can receive notifications but can’t reply. The app is really only good for changing watch faces and viewing health data. There is an IOS version in case you have an iPhone, but the experience is worse than the Android version.


There is a 1-year warranty for manufacturer defects and you should check the product pages for all of the specs. You might also find the Full Android Watch forum helpful for tweaks, tricks, and to see what others in the community are doing with their full android smartwatches. Also, xda-developers also a great source of information for Android devices.

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Price History for LEMFO LEF3


Current Price 129.99November 17, 2019
Highest Price 129.99October 24, 2019
Lowest Price 129.99October 24, 2019
Since October 24, 2019

Last price changes

129.99October 24, 2019

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