Best smartphone 2021

Which is the best smartphone in the UK?

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The 10 best smartphones to buy in the UK

The top 10 list of the best smartphones lists various brands and prices

Review10Best compares the best smartphones in the UK and selects the one by Alcatel as the best smartphone. In a smartphone buying guide, you can read more about the features of the different smartphones and see a recommendation on which smartphone to buy in the UK in 2021. By considering the top list of smartphones, you can find the best smartphones and save time shopping online.


Table of contents

  1. Read the ultimate smartphone buying guide
  2. View the smartphone picks and see how they rank in the top list

SEE THE TOP 10 LIST →
(skip buying guide)


Best smartphones: A complete buying guide

All you need to know before buying a great smartphone

Picture of a smartphone

Choosing the best smartphone for your needs can be difficult. With a near-endless selection of devices, knowing which one works for you can take a lot of time and effort! To make the process of choosing a great smartphone easier, check out the handy buying guide below for all the info you need!

What are smartphones?

A smartphone is a type of mobile phone that uses advanced hardware and consists of a powerful operating system. This allows the device to perform many functions, including phone calls, text messaging, internet browsing, taking videos and photos, and using various smartphone applications.

Why should you buy a good smartphone?

The best smartphone makes life more convenient. Essentially a small handheld computer, these devices are deceptively powerful, being cabling of various computing functions ranging from browsing the web to digital planners to instant messaging to playing video games.

If you want to keep in touch with friends and family, take all kinds of videos and photos, watch videos online, browse social media, manage email, and do countless other functions from the palm of your hand, then look no further than a smartphone.

Another picture of a smartphone
How to choose the right smartphone?

With so many things to consider, buying the best smartphone can be a daunting prospect. Here are some things to think about to make the process easier:

  • Operating System: Android and iOS are the main two operating systems on smartphones. Each one has its advantages, so think about what appeals to your preferences and requirements. For example, Android is known to be much more customizable and have access to more hardware and software option, while iOS has better security, receives more frequent updates, and can be easily integrated with other iOS devices such as an iPad, Mac or MacBook.
  • Screen Size: Given all the stuff you’re using it for, you should think about how large a screen you want. Devices with bigger screens are more expensive but are better for watching videos and generally improve the user experience. Conversely, smaller screens mean a more compact and lightweight device.
  • Storage Capacity: Smartphones have limited storage so always think about how much space you need for all your data. Measured in gigabytes (GB), the higher the number the more SSD storage space there is for photos, videos, apps, and other files. 32GB is a good starting point and can be more than enough for some, although there are much higher capacities including 64GB, 128GB, and even 256GB. Remember, that an external SD card might be a cheap alterantive for extra storage.
  • Camera: The camera function is very important for many consumers, so think about how good of a camera you want. If you take photos and videos then a camera with good focus, low-light performance, noise reduction, and a high megapixel count is recommended. Also, if you like taking selfies make sure there is a front-facing camera! Combine it with a good selfie stick and you are ready to go for great selfies.
  • Battery: The best smartphones typically have a battery life of around 8-16 hours, although these will degrade over time, so a phone with replaceable batteries may be worth consideration. iPhones don’t have this function however, so bear this in mind!
What is the best kind of smartphone in the UK?

Here are the best-selling smartphone currently available:

  • Android: Android smartphones are more varied, with various brands and manufacturers using this operating system. As a result, it is easy to find an Android smartphone for every budget, with an abundance of high quality and budget-friendly options alike.
  • iOS Smartphones: All iPhones use the iOS operating system, with ten generations of iPhone models available, meaning a good selection of price ranges. Newer models are typically the most expensive smartphones, although they come with some of the best features and security.
  • Windows Smartphones: Their popularity has waned in recent years but Windows Smartphones used to have good security, a user-friendly interface, and are generally very affordable. Unfortunately, development of this OS was discontinued. So, there are not many Windows smartphones available anymore.
…are you ready for the best picks of 2021?

Top 10 list of smartphones in the UK (October 2021)

The bestseller list compares brands and their smartphones. Which smartphone is the best?
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Best choice* TOP 1
Image of Alcatel . smartphone
Alcatel 1C 2019 Sim Free Unlocked UK Smartphone 18:9 Display 8GB Dual Sim- Black*
  • No matter if you're a righty or lefty, one-handed mode's display ensures all camera…
  • Social Square lets you review and share your picture as soon as its taken all while…
  • A 5 MP (interpolated to 8 MP) rear camera and 2 MP (interpolated to 5 MP) front camera…
BUY NOW*
TOP 3
Image of Samsung SM-A125FZBVEUA smartphone
Samsung Galaxy A12 SIM Free Android Smartphone 64 GB, Blue (UK Version)*
  • Defence-grade security: protects your mobile phone from the minute it’s turned…
  • Front Camera: With the Galaxy A12 8MP Front Camera and Live Focus, it's easy to snap…
  • Multi-Camera System: Upgrade your mobile photography with the Quad Camera and snap…
BUY NOW*
TOP 5
Image of OPPO CPH2185 Blue smartphone
OPPO A15 - 6.5 inch, Dual sim, 32GB, Triple AI Camera Sim Free Android 10 Smartphone - Blue*
  • No need for a second phone, as the A15 comes with up to 256GB expandable memory,…
  • Battery capacity: A large 4230 mAh battery and superb Power Saving Mode function…
  • Comfortable screen: 6.52' screen with AI brightness , adjusting to your habits and…
BUY NOW*
TOP 6
Image of Samsung SM-A217FZKNEUA smartphone
Samsung Galaxy A21s Android Smartphone, SIM Free Mobile Phone, Black, (UK Version)*
  • Weight (g) : 192
  • Smartphone with Android V10.0 Operating System
  • Mobile battery - High performance 5000 mAh Lithium-ion battery with 15 W quick mobile…
BUY NOW*
TOP 7
Image of Samsung SM-M127FZKVEUA smartphone
Samsung Galaxy M12 Smartphone Dual SIM Android Mobile Phone Black [Amazon Exclusive] (UK Version)*
  • Expandable Memory: Enjoy 64GB of internal storage or add even more space with up…
  • Solid Performance: With up to 4GB of RAM and an Octa-core processor, your smartphone…
  • 5, 000mAh Mobile Phone Battery: The battery that keeps on giving, for hours on end…
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TOP 8
Image of Samsung SM-M325FZKGEUA smartphone
Samsung Galaxy M32 SIM free Smartphone 6.4 Inch Android Mobile Phone 6GB RAM 128GB Memory Black [UK Version]*
  • Octa-core processing power - with up to 6GB/8GB of RAM for fast and efficient performance…
  • Samsung Knox - Built-in multi-layered security that defends your most sensitive information…
  • Super-Fast Charging - The 5, 000mAh battery lets you keep doing what you do, for…
BUY NOW*
TOP 9
Image of Blackview A80 smartphone
Mobile Phone,Blackview A80 4G Smartphone SIM Free Phones Unlocked,Android 10 Phone with 6.217 inches Waterdrop Screen,13MP Quad Camera,4200mAh,2GB+16GB/128GB Extension,Face/Fingerprint Unlock-Black*
  • 4200mAh Long-lasting Battery & 2 Years WarrantyA80 SIM Free Phones has a large…
  • More BenefitFace ID & Fingerprint Unlock. Let your unique face become your key…
  • New Features of the Latest Android 10 PhonesDifferent from the previous Blackview…
BUY NOW*
TOP 10
Image of realme 6941399038042 smartphone
realme C21 Mobile Phone, Sim Free Unlocked Smartphone with 5000mAh Massive Battery, 6.5" Mini-drop Fullscreen, 13MP AI Triple Camera, Helio G35 Powerful Processor, Dual Sim, 4+64GB, Cross Blue*
  • Geometric Art Design: The bold cross-hatch design is fashionable and functional,…
  • 3-Card Slot: Featuring dual SIM slots and a MicroSD slot for expandable storage of…
  • Instant Fingerprint Unlock: The reliable fingerprint sensor unlocks your phone quickly…
BUY NOW*
Affiliate Disclosure

* We participate in the Amazon Associates Program. As an Amazon Associate we earn from qualifying purchases. For the list of the best smartphones, we consider only products that are available on Amazon while the ranking is based on factors such as customer reviews, number of sales and keyword. It is not a smartphone test. Last Update: 2021/10/15.