The BlitzWolf one of the most famous and best smart devices producers is back with a new upgrade from one of the series that gained great popularity among users, after BW-HL1, BW-HL2, and BW-HL3 this upgrade called the BlitzWolf BW-HL4, is suitable for daily use and for the sports user as it carries Multi-sports modes, 30-day battery life, 24h heart rate monitoring, sleep monitoring, IP68 Waterproof, and most importantly a built-in speaker and microphone for making calls, all of this you get with stylish design at a price low-cost for $50. So let’s take a look at how it performs, and whether it’s worth buying.


BlitzWolf BW-HL4 Features

  • Built-in Speaker And Microphone
  • 1.3 inch IPS Display240*240 Resolution
  • Heart Rate And Blood Pressure Monitor
  • Customize Watch Faces
  • Multi-Sport Modes
  • 300mAh Battery
  • IP67 Waterproof

Design And Build Quality

The BlitzWolf BW-HL4 smartwatch has a circular design that looks elegant with slight differences from the BlitzWolf BW-HL3. The display is in the middle with Chronograph numbers in a bezel and a metal frame, giving it the look of an expensive watch, it’s amazing, on the sides and has two buttons that work to menu and power or back, And just between the two buttons, you’ll find the microphone, addition of holes in the other part, which is the built-in speaker.


If you look below you will find that it is made of plastic and has a sensor and charging pins.


Overall, The body is slim and light made of high-quality aluminum alloy with 52mm large size and 12mm thickness and lightweight of not more than 64g, which makes it comfortable on the wrist. Also, it comes in 6 colors the same as the strap that I will mention shortly. Although it is a budget smartwatch, you will notice that the manufacturing quality is high and even the simple design is amazing.

The strap is made of Stainless Steel, lightweight and comfortable on your wrist for long-lasting use. You can use any 22mm strap because it’s removable and available in many colors black steel, silver steel, gold steel, and leather with gold brown, silver brown, and black leather.

Display Screen

The screen in BlitzWolf BW-HL4 it’s a good 1.3 inch IPS display, with better content and details, and has a resolution of 240*240 pixels, which I consider weak due to the presence of watches for the same price with greater resolution up to twice, however, the sharpness of colors and brightness are so good, especially when you wear them in the sunlight you won’t be alarmed by them.


BW-HL4 Watch faces

In terms of Watch faces, BlitzWolf BW-HL4 Smartwatch has many pre-installed watch faces, you can switch between them easily by long pressing on the home screen or via the H Band app for more watch faces with over 50 online watch faces are available for download with customization capabilities for a variety of colors, retro, analog, 3D, and digital faces or your own photos as a watch face background or any wallpaper. And with the wrist-raised feature to wake up the screen, that would be great.


With IP67 waterproof in BW-HL4, It means you can wear it while washing hands or on rainy days, although the watch is not approved for swimming but is good for wearing for activities, so, I do not recommend swimming or exposing it to hot water or saltwater to avoid any harm Long or short term and with the presence of a speaker and a microphone, avoiding it will be good, however, if it’s exposed to water in any way, I prefer to dry the watch after immersing it in water and before operating it so that it stays with you for as long as possible.

Under The Hood

When it comes to performance, BlitzWolf BW-HL4 adopts the built-in chip for faster response speed and faster data processing. For your health, this device has a Low-power dynamic optical heart rate sensor, so this wearable device manages your motion every moment and takes good care of you throughout the day.

This watch has Bluetooth 4.0 support calls So, Yes, it is old and not the fastest and most stable, but it does the job. And this version is compatible with Android 5.0 and later or iOS 10.0 and above so that the connection is through the H Band app. However, it does not have its own GPS sensor, which means that you will always have to use it with a smartphone to get your location.

How To Use BlitzWolf BW-HL4

So far, The BW-HL4 runs a very easy-to-use platform, and the touchscreen navigation is responsive.

  • You can access a Control Center when swiping from the top that enables Bluetooth call, Do Not Disturb Mode, Settings, About, Time and date, percentage of your battery, and see if your phone is connected to this watch and more.
  • By swiping from the bottom, has music player.
  • And by swiping from the right or left, you will find shortcuts for Heart rate monitoring, Blood Pressure, Sleep, and Pedometer.
  • The main menu can be accessed by press the mode button, you will find heart rate and sleep monitoring, steps, settings, and other features that include capturing photos from the watch and music, weather, sound recording.

BW-HL4 Health & Fitness Functions

The BlitzWolf BW-HL4 Smartwatch is equipped with multi-sports modes to suit any of your needs, including Outdoor Running, treadmills, Walking, Outdoor cycling, Cycling, On foot, Yoga, Basketball, Tennis, Badminton, Football, training.

Apart from the sports features, its built-in optical heart rate sensors, with a professional intelligent heart rate algorithm, you can monitor your heart rate in real-time to check whether it’s beating normally or not and monitor sleep to measure your total light sleep, deep sleep, and wake time to provide you with an analysis of your sleep patterns, monitor blood pressure and measure oxygen levels in the blood in real-time to improve for the ability of the cardiovascular system to prevent the low level of oxygen in the blood that causes discomfort to a person’s body.

Although it has a good sensor that is more accurate than other sensors, this does not mean that the measurements provided by this smartwatch are completely accurate, as most of them are largely unreliable because it’s not a medical instrument, but it makes you very aware of your health and physical performance. unfortunately, this is often the case with watches in this price range.

H Band App For BlitzWolf BW-HL4

BlitzWolf BW-HL4 Smartwatch is compatible with the H Band app for Android and iOS to help you set up and use the watch more efficiently. You can take advantage of some features, stats, and functions without any additional equipment, such as steps taken, sleep hours, heart rate measurements that you have taken, and all this is done by automatically integrating watch data on the home screen with the ability to view it on a daily or monthly basis. Also set exercise goals and encourage yourself to complete your exercise amount each day through a simple and easy-to-understand operating interface with sections like steps, distance, notifications, alarm, and more.

The app is downloaded through the Google Play Store or the Apple App Store, so you know it is a safe app.

How To Pair The BlitzWolf BW-HL4 To a Smartphone

It’s easy to connect the BW-HL4 smartwatch to your phone. After installing the H Band app and setup, all you have to do:

  1. Turn on the Bluetooth of the watch and mobile phone.
  2. Click Add device in the APP settings to connect the watch to the APP.
  3. iPhone phones need to agree to app display message notifications, Android phones need to agree to read all notification permissions such as contact information, and agree to app background operation in the settings.

When this is done, it will communicate directly and without any complications, with automatic setting of time and language, weather, in addition to a phone call feature, and update the smartwatch software if available.

Making Calls On BlitzWolf BW-HL4

The most important feature of the BW-HL4 is its equipped with a microphone and a loudspeaker, so it not only displays an incoming call but can also receive and dial calls are made via Bluetooth directly from the watch with HD speakers and mic, and of course, this is done with your smartphone, you will not need to take your phone out of your pocket to answer a simple call.


Notifications are clearly visible and easily readable. You can choose lots of different popular apps to give notifications on BlitzWolf BW-HL4 Smartwatch, for example, WhatsApp, Twitter, Facebook, Instagram, SMS, WeChat, and other apps are supported.

You can also access call or message notifications with many other functions such as stopwatch, alarm, calendar, reminders to not sit, remote control of the camera to take selfies with a touch on the screen, and you can control the music from your watch only.

BW-HL4 Battery Life & Charging Time

In the end, the BlitzWolf BW-HL4 offers a decent battery that is considered good in this category with a capacity of 300mAh, which gives you up to 10 days of normal use with continuous heart rate tracking. And 30 days in standby mode, it all depends on the type of activities you do, and it must be charged with a magnetic charger and it takes about two hours.


BlitzWolf BW-HL4 Price And Where To Buy

The BlitzWolf BW-HL4 is currently available on the Aliexpress Store and Banggood for a very good price So, don’t miss out on this great deal. And to view its price or buy it, you can access the offer by clicking on the store icon. And from banggood, you can use this coupon code 6b057f for a $4 discount.

Package content

  • BlitzWolf BW-HL4 Smartwatch
  • Magnetic charger
  • User Manual

BlitzWolf BW-HL4 Specifications

ModelBlitzWolf BW-HL4 
Colorblack steel, silver steel, gold steel, and leather with gold brown, silver brown, and black leather
Bluetooth VersionBT v4.0
Compatible SystemAndroid system 5.0 version or above; iOS system 10.0 version or above
Operating ModeFull Touch Screen + Two Press Button
APP NameH Band
App LanguageSimplified Chinese, English, France, Spanish, Portuguese, Russian, Japanese, Korean, Thai, Arabic, Indonesian, Vietnamese, Turkish, German, Italian, Polish, (Persian)
Watch LanguageSimplified Chinese, English, France, Spanish, Portuguese, Russian, Japanese, Korean, Thai, Arabic, Indonesian, Vietnamese, Turkish, German, Italian, Polish, (Persian)
Personalized DialMulti-Dials
SensorAccelerometer, Heart Rate Sensor
ScreenSize: 1.3 inch
Type: IPS
Resolution: 240*240
MaterialBand Material: Silicone 
Watch Case Material: Metal+Plastic
BatteryBattery Capacity: 300mAh 
Standby Time: about 30 days
Using time: About 7-10 days
Charging Time: About 2 hours 
Charging Method: Magnetic charging
SizeSize: about 52*12mm
Strap Size: 22mm
Weight: 64g