Top smart watches capable of replace smartphone

Smart watch - a convenient accessory, allowing to monitor physical activity throughout the day and many other health indicators. In addition, it is a great way to stay in touch with relatives and loved ones without removing the phone from the pocket!

If you want to use Smart clock without a smartphone, you should purchase a model with SIM-card support. Due to this, the device can be used for calls, sending text messages and run applications requiring connection to the Internet.

Yes, smart clocks are not 100% replaced by a telephone, but represent an excellent alternative to saving the battery charge on the smartphone and, if necessary, can recoup the role of the backup device.

Just below, we collected a whole list of smart watches with SIM card support for iOS and Android, which in some situation will be able to replace the smartphone.

Garmin Forerunner 945 LTE

  • Screen: 1.2 "(240 × 240)
  • Compatibility: Windows, iOS, Android, OS X
  • Waterproofability: WR50 (5 atm)
  • Interfaces : Wi-Fi, NFC, Bluetooth
  • calls : Notification of an incoming call
  • Monitoring : Calories, physical Activity, sleep
  • Sensors : Accelerometer, altimeter, pulsometer with constant pulse measurement
  • Weight: 50 g

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Garmin Forerunner 945 LTE - The best smart watches for people actively engaged in sports. The functionality of the device is so good that you can train without any additional devices and track your results.

The clock shows the heart rate and other indicators of the body, and can also play sound (in case of connecting to Bluetooth headphones).

The Garmin Pay function will allow you to buy food and other necessary products in the store with NFC, so you do not need to take a wallet and credit cards with you. Note and step-by-step navigation - thanks to this option, you do not get lost if you are in unfamiliar area.

In case there is needed emergency medical care, the clock directly associates the user with the International Coordination Center for Emergency Response (works around the clock and without days off).

Gadget is compatible with both iOS and Android, so any smartphone owner can take advantage of all the benefits of these smart hours.

Key features:

  • LiveTrack allows you to track the location in real time and view the entire pre-planned route.
  • Assistance Plus automatically sends the name and location of the user in Garmin Iercc, the emergency response focal point, which works around the clock and without days off and is associated with local emergency services.
  • Recommendations for training.


  • the ability to upload up to 1000 songs on Smart watch and listen to music through Bluetooth headphones.
  • Receives notifications when conjugate with a compatible smartphone.
  • Step-by-step navigation function.


  • Expensive.

Apple Watch SE

  • Screen: 1.78 "(368 × 448)
  • Compatibility: iOS
  • Waterproof: WR50 (5 atm)
  • Interfaces : Wi-Fi, NFC, Bluetooth 5.0
  • Calls : Opportunity of response
  • Monitoring : calories, physical activity, sleep
  • Sensors : Accelerometer, Gyro, altimeter, pulsometer with constant measurement of the pulse
  • Weight: 30.49 g

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If you want to find a device offering an excellent value for money, but at the same time with a sufficiently rich functionality, pay attention to the Apple Watch SE.

This is not simple Fitness tracker, since the clock is also able to monitor the sleep of the user, find the phone, control the heart rate and even act as the voice assistant With Siri.

The device is available in several different colors, all in an elegant metal case. Note and an excellent display with a brightness of 1000 NIT - you can see the contents of the screen regardless of the lighting conditions!

As for security, there is an emergency call function - in case of an accident, the clock will instantly report it to the relevant institutions.

Unfortunately, the gadget is compatible only with iPhone. Thus, Android users will have to pay attention to other models. Fortunately, there are enough them in the market.

Key Features:

  • Fall Detection Function.
  • monitors cardiac rhythm and notifies the user about any potential health problems.
  • Bright display (1000 NIT) - you can view the contents of the screen at any lighting.


  • The display automatically turns on when the wrist turn.
  • Good speaker and microphone.
  • Many useful sensors allowing to monitor health status.


  • Lack of global cellular support.

Ticwatch Pro 4G LTE

  • Screen: 1.39 "(400 x 400)
  • Protection: IP68
  • Compatibility: Android, iOS
  • Interfaces : Wi-Fi, NFC, Bluetooth
  • Calls : Ability to answer
  • Sensors : Heart Rate Sensor, Accelerometer, Gyro, Electronic Compass, External Light Sensor
  • Weight: 47.4 g

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Let's open the secret: no need to spend a whole condition To get decent smart watches, and Ticwatch Pro 4G LTE is a bright example. The device is equipped with a double screen: the top is a LCD display with low power consumption to check the time and other basic information, and the bottom layer is an amoled screen that displays all the necessary functions.

Despite the availability, the device offers steep features: fitness tracking, google pay and even sleep tracking! We note and moisture protection of the type IP68 (you can swim in the pool).

Due to the unique design with two screens, the clock offers a great time of autonomous operation. Depending on the settings you have chosen, the model is able to work from two to thirty days.

If you, for example, go hiking into the forest for a couple of weeks, then Ticwatch Pro 4G LTE is the best companion. Despite the fact that the gadget is running Wear OS from Google, it is compatible with both Android-based smartphones and iOS.

Key functions:

  • Two-layer display (LCD and AMOLED ) Allows you to switch between screens.
  • Sleep tracking feature allows you to control sleep quality.
  • Wide compatibility with many applications.


  • Protection of the IP68 type.
  • Price.
  • Lightweight body of polyamide and fiberglass, frames - stainless steel.
  • Strength on the Military Standard 810g.


  • The screen is poorly visible with bright sunlight.

Samsung Galaxy Watch4 Classic

  • Screen: 1.4 "(450 × 450)
  • Protection: WR50 (5 atm)
  • Compatibility: Android
  • Interfaces : NFC, Bluetooth
  • Calls : Response Ability
  • Monitoring: Calories, physical activity, sleep, oxygen level
  • Sensors : Accelerometer, gyroscope, pulsometer with constant measurement of the pulse, ECG
  • Weight: 46.5, 52 g (depending on version)

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Samsung Galaxy Watch4 Classic is an excellent smart watch that will decorate the wrist of any user. The device looks elegant and stylish, and offers not only communication and notifications, but also monitoring the user's health, because it constantly reports the physical condition at one time or another.

Smart Watches are equipped with special sensors that allow you to track the percentage of fat, the water level in the body and much is more. In addition, the device is able to measure the ECG and arterial pressure in real time, and warns the user in case of detection of something alarming.

And finally, the clock continuously monitors sleep and measure the phases of light, deep and fast sleep.

It should, however, should be noted that Galaxy Watch4 Classis is compatible only with Android devices.

Key features:

  • A complete set of sensors for the tracking of health indicators.
  • is offered in two sizes.
  • Sleep tracker determines and analyzes the stages of sleep, the level of oxygen in the blood and can even track and control the snoring.


  • Degree of protection IP68, withstand pressure Waters up to 5 atm.
  • Complies with MIL-STD-810G strength standards.
  • The classic design will suit any user.


  • Limited selection of colors.


  • Screen: 1.2 "(396x396)
  • Protection: WR50 (5 atm)
  • Compatibility: Android
  • Interfaces : NFC, Bluetooth
  • Calls : Ability to answer
  • Monitoring: calories, physical activity, sleep, oxygen level
  • Sensors : accelerometer, gyroscope, pulsometer with constant Measurement of the pulse, ECG
  • Weight: 25.9 g

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Samsung Galaxy Watch4 is sold at a lesser price than Galaxy Watch4 Classic, but offer similar functions. The only change is a slightly smaller form factor and less high-quality material.

Despite this, the size of the screen remains unchanged, the weight is smaller, and the body is made of aluminum.

We also note a greater number of colors options compared to the Classic version. If you are looking for a smart premium clock, but do not need a stronger Watch4 Classic package, Samsung Galaxy Watch is what is needed.

Unfortunately, the device is only available for Android users, and the IOS database clocks are not supported.

Key features:

  • The ability to monitor ECG in real time with exact results.
  • Advanced and continuous sleep monitoring and oxygen saturation indicator.
  • An indicator of maximum oxygen consumption and voice assistant when running will help make training more efficient.


  • made of lung, but lasting Aluminum.
  • Glass Corning Gorilla Glass DX to protect against scratches.
  • Available in four different colors.


  • Thinner and less durable design compared to classic version.

Apple Watch Series 7

  • Screen: 1.7 "(396 × 484)
  • Protection: WR50 (5 atm)
  • Compatibility: iOS
  • Interfaces : Bluetooth 5.0, Wi-Fi, NFC
  • Calls : Opportunity of response
  • Monitoring: Calories, physical activity, sleep, oxygen level
  • Sensors : Accelerometer, gyroscope, altimeter, pulsometer with constant measurement of pulse, ECG
  • Weight: 32, 38.8 g (depending on version)

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If you are the happy owner of the iPhone and want to receive reports on your physical form and a state of health in real time, then be sure to pay attention to the latest Apple Watch Series 7.

The clocks offer a lot of steep features (monitoring of oxygen in the blood, ECG and much more). In addition, the device warns the user in case of finding unusual indicators, such as high or low heart rate or irregular heart rhythm.

The device is also equipped with a security feature in case of emergency situations, like Apple Watch SE, described above, so you can be sure that the help is always there!

You can purchase hours in three versions of the hull: aluminum, stainless steel and titanium. We note and a wide selection of colors: green, blue, red, shining star and dark night.

Another thing: Apple Watch Series 7 work only with iPhone.

Key features:

  • Fall Detection, SOS Extra Call Guaranteed Safety.
  • The noise application measures the sound volume around the user and is reported if the volume reached hazardous level.
  • allows you to measure the level of oxygen in the blood and ECG directly on the wrist.


  • Digital Crown wheel with tactile reverse Communication makes smart clock simple and intuitively understandable.
  • More than ten combinations of colors and straps are available.
  • The largest display among all models of Apple Watch.


  • Expensive.

Samsung Galaxy Watch 3

  • Screen: 1.18 "(360x360), 1.36" (396 × 484)
  • Protection: WR50 (5 atm)
  • Compatibility: iOS, Android
  • Interfaces : Bluetooth 5.0, NFC
  • calls : Opportunity of response
  • Monitoring: calories, physical activity, sleep, oxygen level
  • Sensors : accelerometer, gyroscope, altimeter, pulse meter with constant pulse measurement, ECG
  • Weight: 48.2, 53.8 g

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Yes, Samsung Galaxy Watch3 came out for a long time, however, the hours are still popular among users. All because the model offers physical activity tracking functions and sleep, which provides the user with information about its health.

The clock is capable of automatically tracking the seven of the most popular types of activity, including running, cycling and swimming. Note and the built-in application for learning running, allowing you to get the most out of exercise.

We note the tracking of sleep and stress, so you can follow the quality of your holiday. In addition, the function of monitoring the oxygen level in the blood and heart rate is deserved.

If you fell or hit an accident, then the clock will detect it and contact the salvation service in one touch.

The model is compatible with both iOS and Android devices. It is worth it, however, notice that the clock is a bit limited in terms of the functional in the case of the iPhone.

Key features:

  • An SAMSUNG Health Monitor application with pressure measurement function.
  • Good Battery - Watches can work all day.
  • Automatic sleep tracker allows you to track the quantity and quality of rest.


  • Price.
  • Compatible with both iPhone and Android.
  • Available in two sizes and three colors.


  • A little old.

TickTalk 4

  • Screen: 1.54 "(360x360), 1.36" (396 × 484)
  • Protection: IP67
  • Compatibility: iOS, Android
  • Interfaces : Bluetooth
  • Calls : Video-, audiosiles
  • Monitoring: physical activity, location
  • Sensors : 5 meters camera, parental control
  • Weight: 68 g

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Smart watches perfectly help parents to monitor their children, but there are not so many similar devices on the market. It is here that TickTalk4 comes to the rescue - the model with the built-in camera allows parents to keep track of their children and support contact with them.

The device is also equipped with a function of tracking activity, which encourages children to be more active and lead a healthy lifestyle.

We note the free IheartRadio Family Stringing Service, which allows listening to music, Podcasts and much more. Many children are not very careful about this kind of things, and the developers took into account this - the clock is quite durable, since they are shock-resistant and protected from moisture (IP67).

Another advantage of these smart watches is that the smartphone is not required for their work. You do not need to match the gadget with another device. However, there is a concomitant application available both on Android and iOS.

Key features:

  • Allows you to perform video calls, voice calls and send text messages even Without smartphone.
  • Built-in GPS and advanced parental control, allowing parents to keep track of their children.
  • Daily activity tracker encourages children to lead a healthy and active lifestyle.


  • Free Unlimited Stregnated Service IheartRadio Family With music, podcasts and many others.
  • Equipped with two 5 megapixel cells for sharing photos and video.
  • Protection against drops, as well as waterproofing type IP67.


  • The size is not suitable for all children.

Samsung Galaxy Watch Active 2

  • Screen: 1.2 "(360x360), 1.4" (360x360)
  • Protection: WR50 (5 atm)
  • Compatibility: iOS, Android
  • Interfaces : Wi-Fi, NFC, Bluetooth 5.0
  • Calls : Ability to answer
  • Monitoring: Calories, physical activity, sleep
  • Sensors : accelerometer, gyroscope, altimeter, pulsometer with constant pulse measurement
  • Weight: 30, 37 g

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If you want to purchase a truly flagship smart watch, but at the same time you have a limited budget, Samsung Galaxy Watch Active2 is what is needed.

The model allows you to track physical activity and exercise efficiency using the VO2MAX sensor, which helps to control training.

In addition, smart clocks are not tied to a specific telecom operator, so you can use them on any network. We note and good battery life - the device is able to work up to five days without recharging.

Galaxy Watch Active2 Compatible with both Android and iOS, but you must remember that the iPhone is not able to maximize the use of all the functions of the device. Only a smartphone based on Android will scorch the maximum from the device.

Key features:

  • is compatible with almost any telecom operator.
  • Equipped with the VO2MAX sensor to track exercises.
  • The most accurate health indicators.


  • works with both Android, so and from iOS.
  • Durable Glass Corning Gorilla Glass DX + protects the clock from scratches.
  • Automatic determination of low or high pulse.


  • The model is old (according to current standards).

Frequently Asked Questions

Can Smart Watch 4G LTE Replace smartphone?

No. The devices of this type are connected to the network directly, but their functions are often strongly limited. They do not give out TU performance and battery life, that smartphones, so for the effective use of smart watches you still need a telephone.

Do I need to connect a tariff plan for smart watches 4G LTE?

It all depends on the model. Some models require an operator's tariff plan (for example, Apple Watch SE and Apple Watch Series 7), and devices such as Garmin Forerunner 945 LTE and Samsung Galaxy Watch Active2 - no. However, to use all the 4G functions, you still need to have an active gearmin or Samsung subscription.

What is the purpose of intelligent hours?

In addition to notifications about incoming calls and messages from a smartphone, most modern smart hours are equipped with a set of sensors that allow you to track your health.

Thus, you can use smart clock for tracking the functions of your body and even sleep efficiency.