Best smartphone 2021

Which is the best smartphone in the UK?


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

(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 (August 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…
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…
Offer* TOP 4
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…
Image of OnePlus LDKSX00513 smartphone
OnePlus N10 5G 6GB RAM and 128GB Storage SIM-Free Smartphone with Quad Camera, Dual SIM and Warp Charge 30T - Midnight Ice - 2 Year Warranty*
  • Front Camera Video: 1080p video at 30/60 fps, Time-Lapse
  • 6GB RAM + 128GB internal storage powered by the Qualcomm Snapdragon 690 5G Mobile…
  • Superior Performance that takes you further 4300mAh battery with Warp Charge 30T…
Image of Samsung SM-A217FZBNEUA smartphone
Samsung Galaxy A21s Android Smartphone, SIM Free Mobile Phone, Blue, (UK Version)*
  • Smartphone with Android V10.0 Operating System
  • Mobile battery - High performance 5000 mAh Lithium-ion battery with 15 W quick mobile…
  • Up to 512 GB of Micro SD card, expandable memory for photos, music and more
Image of Xiaomi M2102J20SG smartphone
POCO X3 Pro - Smartphone 8+256GB, 6,67” 120Hz FHD+ DotDisplay, Snapdragon 860, 48MP Quad Camera, 5160mAh, Phantom Black (UK Version + 2 Years Warranty)*
  • SURROUND SOUND EXPERIENCE. Hear the in-game surroundings as if you were there inside…
  • FLAGSHIP DISPLAY PROTECTION. Improved drop performance, survives drops from up to…
  • Featuring flagship 120Hz refresh rate and 240Hz touch sampling rate, POCO X3 Pro…
Image of Xiaomi M2101K7BNY smartphone
Xiaomi Redmi Note 10S - Smartphone 6GB+64GB, 6.43” AMOLED DotDisplay, MediaTek Helio G95, 64MP Quad Camera, 5000mAh, Ocean Blue (UK Version+2 Year Xiaomi Warranty)*
  • It comes in three striking colors such as Onxy Gray, Pebble White, Ocean Blue with…
  • Its massive 5, 000mAh battery keeps the device powered up throughout the day, and…
  • Powered by the MediaTek Helio G95 chipset, Redmi Note 10S was designed for the ultimate…
TOP 10
Image of Xiaomi M2101K6G smartphone
Xiaomi Redmi Note 10 Pro - Smartphone 6+128GB, 6,67” 120Hz AMOLED DotDisplay, Snapdragon 732G, 108MP Quad Camera, 5020mAh, Onyx Gray (UK Version + 2 Years Warranty)*
  • Dual speakers on both the top and bottom of the device offer a more immersive sound…
  • Achieving a 20:9 aspect ratio with its 6.67” AMOLED DotDisplay, Redmi Note…
  • Redmi Note 10 Pro helps you get there with new creative photo and video features,…
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: 2021/08/03.