When smartwatches were introduced they were just an extension to your phone and needed to be synced with it for full functionality. These smartwatches only show date and time when they are not paired with a phone. It was excited back then but now time and technology both have changed.
The Smartwatch market is also growing bigger with a lot of new innovations. A standalone smartwatch is one such innovation. Simply speaking it is a watch with a SIM card slot and you don’t need to pair it with your smartphone to work properly.
What is a Standalone smartwatch?
Standalone smartwatches can do much more than a regular smartwatch. They come with SIM card support which means it doesn’t require your phone to functioning. You can enjoy music with them by connecting with your headphones or on its speakers and some of them have a camera too for video calling and capturing photos and videos.
Standalone smartwatches perform the function of a basic phone like making or receiving calls, messages, e-mails, respond to notifications, etc.
Along with all these features they take care of your health as most of them have a bunch of sensors like heart rate sensor, altimeter, GPS for fitness tracking.
They also provide you the convenience of making payments without your cards as many come with NFC support. Basically, smartwatches with cellular connectivity are here to make your life easy.
Are standalone smartwatches worth buying?
We all know smartphone addiction has become a big thing now and this gadget can help you get over with it as it performs the function of a basic phone so you can leave your smartphone at home without being completely disconnected from the outside world.
It also gives you freedom from carrying your smartphone while walking, on a jog, to the gym, or on an adventure trip.
There are many options for you to choose from. Some standalone smartwatches are loaded with lots of fancy features, some offer solid fitness tracking while some provide basic calling, messaging, and e-mail features.
The mobility and small size of this gadget make it very useful and provide certain invisibility while operating. So these smart pieces of engineering are worth giving a try.
Even if you are a beginner you can invest in a pocket-friendly smartwatch with a SIM card slot and we are sure you will not be disappointed.
11 Best Standalone Smartwatches 
We have picked up for you the top 11 standalone smartwatches currently available in the market. We have tried to add smartwatches for every budget and different needs to make the task of choosing the right product easy for you.
#1 Apple Watch Series 6
The Apple Watch 6 is technically one of the most advanced standalone smartwatches of 2021. This premium smartwatch comes with a lot of crazy features that are exciting enough to blow your mind. It can measure blood oxygen, track your activity, and do a lot of cool things.
The Apple watch series 6 is available in 40mm & 44mm case sizes.
It is the first apple watch with an always-on display feature, which is a very rare feature in today’s smartwatches.
This premium watch comes with a decent 1.78” inch retina display. The system is powered by apple’s watchOS 7.0 coupled with 1GB RAM and 32 GB of storage capacity.
This smartwatch has an in-built microphone & speaker. It has an e-sim facility, so can directly pick and even call your friends with this amazing smartwatch. This smartwatch has all the features which a good standalone smartwatch should have.
Some of the unique traits of the Apple watch series 6 are that it can track the menstrual cycle, protect you from loud noise, and helps you in practicing mindfulness.
It will help you stay motivated all day long by doing plenty of exercise with the world’s most knowledgeable trainers. With this watch, you can also share your activity records with your family and friends very easily.
- Price: $699-$799
- Reliable cellular connectivity
- ECG functionality
- Fall detection & emergency SOS features
- Always-on display
#2 Samsung Galaxy Watch
Samsung Galaxy Watch is the best smartwatch with a SIM card slot for Android users and it also compliments iOs well. It is available in 46mm and 42 mm versions which makes it suitable for both men and women.
Galaxy Watch has a round dial encased in a stainless-steel body with Corning Gorilla Glass protection making it very durable. It has an always-on display AMOLED display and an excellent 4-day battery life. Its rotating bezel design makes it user-friendly while navigating.
Samsung Galaxy watch is great for fitness enthusiasts as it tracks 39+ activities and is water-resistant up to 50m.
It supports 3G/4G/LTE cellular connectivity and has built-in GPS making it a superb standalone smartwatch.
It runs on Samsung’s own Tizen OS so it will be a great choice for people who dislike the fancy Wear OS features.
- Price: $329.99
- 39+ activity tracking
- Always-on AMOLED display
- 4-day battery life
- Robust design
#3 Samsung Galaxy Watch 3 LTE
Another great pick to be one of the best standalone smartwatches of 2021 is the Samsung Galaxy Watch 3, It is the latest premium standalone wrist-watch by Samsung. This easy to wear, lightweight Smartwatch comes at really an affordable price.
The watch comes with a beautiful 1.2” inch colorful display. It is powered by a 1.15GHz processor coupled with 1.5 GB RAM and 8 GB of internal storage capacity. It has a long live battery on a single charge.
According to the Samsung official page, this smartwatch has the most advanced health monitor.
Its unique rotating bezel is quite useful in different app navigation.
It has a dedicated SIM card slot that will allow you to make calls, and enjoy all smartphone facilities with this even if you’re far away from your smartphone. It has an integrated speaker and mic.
- Price: $499.99
- 5 GB RAM | 8GB ROM
- Built-in oxygen measurement
- 1.5 GHz Processor
- Bluetooth version v5.0
#4 Huawei Watch 2 Sport
Huawei Watch 2 Sport has a sporty design but it is still not bulky. It supports cellular connectivity up to 4G along with eSIM support.
This brilliant smartwatch runs on Wear OS so it has so many features and has a battery life of up to two days. It features interchangeable silicon straps and is a perfect fit for men.
Watch 2 Sport features heart rate monitoring, GPS, Wi-Fi, Bluetooth, and NFC making it a standalone smartwatch in true sense.
It comes with various customizable watch faces, which is a very good thing. It is water-resistant up to 1 meter for 30 minutes which is not so great and another disappointing thing is lack of sleep tracking. But still, it is one of the best smartwatches with a SIM slot.
- Price: $299
- Nice sporty design
- NFC support
- 48 hours of battery life
- Interchangeable straps
#5 Zeblaze Thor 6
This smartwatch from Zeblaze has the looks of a traditional watch and premium aesthetics at a moderate price. It has a 1.6-inch wide display and a 46.7mm case size making it perfect for men’s wrists.
Thor 6 is World’s First Octa-Core 4G Smartwatch running under Android 10 OS.
Build to outperform, this watch comes with a unique Helio P22 octa-core 12nm processor that is supported by 4GB RAM and 64 GB of massive internal storage.
That’s not all the Zeblaze Thor 6 even comes with a monstrous 830mAh battery that will last for many days. Capture moments and do video calls with a 5mp camera. It can also work as a great fitness tracker, and even monitors heart activities.
Thor 6 is a smartwatch with a SIM card slot supporting up to 4G LTE cellular connectivity.
This Chinese smartwatch also has a 5MP camera for capturing moments and video calling on the go. Here you also get 64GB internal storage and 4GB of RAM for smooth performance. It has a battery life of about a day in spite of enormous features.
- Price: $180
- Octacore processor
- 4GB RAM and 64GB storage
- Premium looks at cheap price
- Customizable straps & watch faces
#6 Fossil Gen 5
Fossil Gen 5 is a fantastic standalone smartwatch for you if you are into sports.
You get a 1.28” inch AMOLED display which has 328 PPI density making it visible even in broad daylight.
It is powered by the QS wear 3100 backed by 1 GB RAM and 8 gigs of internal storage.
The AMOLED display of this smartwatch is lively to look at. Fossil Gen 5 supports cellular connectivity up to 4G LTE, so you can make and receive calls as well as surf the web via its inbuilt browser.
You can also track your heart-rate and activity by Google fit, which is already installed in this smartwatch.
- Price: $300
- 8GB internal storage & 1GB RAM
- Connectivity- WiFi, GPS, NFC, Bluetooth 4.2 LE
- LTE support
- Low price with great quality
#7 Kospet Hope 4G
Kospet Hope 4G is another nice smartwatch that doesn’t need a phone to work. It features a massive 3GB RAM and 32GB of storage for all your data.
It has a nano-SIM slot enabling cellular connectivity up to 4G LTE and an 8MP camera for high-quality video calls and capturing moments.
While providing cellular connectivity it also takes care of your fitness very well with its sensors including a heart rate monitor and GPS for tracking your steps, distance, calories, and other activities.
However, its battery is not so good but on regular usage, it can last for a day over a single charge.
- Price: $180
- Massive 3GB RAM
- 32GB ROM
- 8MP camera
- Nice and durable built
#8 Apple Watch Series 3
If you own an iPhone and don’t want to invest then Apple watch Series 3 is a great option for you.
It is a great smartwatch with calling features as well as other cellular connectivity to give you a break from your smartphone.
It is the cheapest apple watch with standalone features.
This iOS watch is not as advanced as Series 5 but still, it can track your active life with its number of fitness tracking features including heart rate sensor, sleep tracking, and outdoor activity tracking.
Watch series 3 is a great choice for women too as it comes in two case sizes 42mm and 38mm. It is also swim-proof and a variety of models are available to choose from and it lasts for a day on a single charge.
- Price: $329
- Accurate fitness tracking
- Stylish and light design
- Variety of models available
#9 Samsung Gear S3 Frontier
Although Gear S3 Frontier was released two years ago it still gives tough competition to the latest smartwatches. It has sporty and rugged built with MIL-STD-810G US Military Standard rating.
So along with providing cellular connectivity up to 4G LTE, it can resist dust, water, and extreme temperatures which makes it stand out.
It features a 1.3 inches super AMOLED display that looks vivid and performs well in outdoor conditions.
Gear S3 is great at fitness tracking too with 39 in-built sports modes with auto recognition and an impressive battery life of up to 4 days.
Frontier has a rotating bezel design for easy operation with sweaty hands and also supports Samsung Pay so you don’t have to worry if you left your wallet behind.
- Price: $299.99
- Military Standard built
- Excellent fitness tracking
- NFC support
- Impressive battery life
#10 Scinex SW20
Scinex SW20 is a fantastic standalone smartwatch to check out. It has an elegant design which makes it suitable for any occasion.
Scinex SW20 is one of the cheapest standalone smartwatches with decent features.
This basic smartwatch has a big 1.5-inch display which is very responsive making it very easy to use.
It is very affordable and is a great smartwatch with a calling feature.
However, you can only receive notifications and texts on it but cannot reply to them. You also get a 1.6MP camera on it which comes handy while capturing pictures and video calling.
Scinex SW20 comes with 16GB of internal storage and is compatible with both Android and iOs devices. It also has several tracking features and Apps for more useful performance.
- Price: $54.99
- 6MP camera
- Elegant design which gives a premium feel
- 16GB storage space
#11 KingWear KW88 Pro
KingWear is a new name in the smartwatch market and has become one of the top brands in the Chinese smartwatch market.
This Chinese smartwatch is surely one of the best standalone smartwatch running on the Android platform.
It has elegant and stylish looks and offers cellular connectivity up to 3G enabling you to send and receive calls, messages, notifications, access the internet.
KW88 Pro has got 16GB of storage and 1GB of RAM along with a 2MP camera. It also keeps track of your fitness with its pedometer, heart rate monitor, and in-built GPS.
- Price: $85.99
- 4 days of battery life
- 16GB ROM & 1GB RAM
- 2MP camera
Standalone Smartwatch Buying Guide
What to look for while buying a standalone smartwatch? here we have included some of the features which you can check while buying these smartwatches.
It is very important to choose a design that fits perfectly on your wrists and is easy to operate with your fingers as it is going to accompany you the whole day.
If you have big fingers and you end up choosing a smartwatch with a small dial it will be a big hassle for you. Also, light and comfortable design are very important if you are into sports and other fitness activities.
Today smartwatches are loaded with ample features to allure customers but before buying the product you should first think about what exactly are your needs.
Whether you want a smartwatch with calling features and other basic functions or a fitness-focused smartwatch with a SIM card.
When you look for a standalone smartwatch, smooth and lag-free performance becomes of utmost importance.
Of course, no one wants a smartwatch that doesn’t sound properly over calls or lags while navigating between apps.
Most of the standalone smartwatches have average battery life. A long-battery life becomes crucial if you are out for a few days on a hike or somewhere relying on your smartwatch for connectivity and navigation.
Smartwatches can be very annoying if it just runs out of battery in between. A single day battery life is enough for people who can charge it daily but it is a big no for outdoor enthusiasts.
SIM Card Support
Not all standalone smartwatches come with a SIM slot and nowadays some latest smartwatches offer eSIM features that eliminate the use of a SIM slot.
However, as these watches have a pre-programmed carrier in it so it can be quite a hassle if you want to change your carrier. So you should consider your needs before buying any smartwatch with a SIM card slot.
So this was the article related to the best standalone smartwatch along with the buying guide. If you have any queries regarding this article, write your question in the below comment section.