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 OPPO 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 (January 2021)

The top 10 list shows how brands and their smartphones compare. Which smartphone is the best?
Ad We earn commissions from purchases made through links in this list.
Top choice* TOP 1
Image of OPPO CPH1931 Mirror Black smartphone
OPPO A5 2020 Snapdragon 665 5000 mAh Dual Sim 12 MP Ultra Wide Quad Camera Smartphone, Mirror Black*
  • Talk about having power in the palm of your hand. Now you can watch HD videos on…
  • Working in tandem with A5’s 3GB of RAM, Snapdragon 665 provides faster performances…
  • Surround yourself with full-bodied, clear sound even at full volume. With two speakers…
BUY NOW*
Value deal* TOP 3
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 4
Image of DJI DJI Osmo Mobile 3 Prime Combo smartphone
DJI Osmo Mobile 3 Prime Combo - 3-Axis Gimbal Stabilizer Kit with DJI Care Refresh, Compatible with iPhone and Android Smartphones, Portable Design, Stable Shooting, Intelligent Control with Tripod*
  • EXPRESS OPTION: DJI Care provides two replacement units for a small additional charge…
  • ACTIVETRACK 3.0: Just press the activation button, make a gesture or select a framed…
  • CREATE AND SHARE: After personalizing your videos with lots of music, transition…
BUY NOW*
TOP 5
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 6
Image of Xiaomi 28703 smartphone
Xiaomi Redmi Note 9 4GB/128GB Midnight Grey (UK Version + Official 2 Year Warranty)*
  • 1216 X max0.5mm high amplitude ultra-linear speaker, Smart PA 11V external, pressure…
  • Dual 4G standby, Supports 2+1 card slot, nano-SIM + nano-SIM + microSD, 4G / 3G /…
  • AI quad camera, 48MP main camera, 8MP ultra wide-angle camera, 2MP Macro camera,…
BUY NOW*
TOP 7
Image of Samsung SM-M315F smartphone
Samsung Galaxy M31 Mobile Phone; Sim Free Smartphone - Black [Amazon Exclusive] (UK Version)*
  • included components : Phone/Travel Adapter/Data Cable/SIM tool/Warranty Card
  • Smartphone with Android V9.0 Operating System
  • Mobile battery - High performance 6000 mAh Lithium-ion battery with 15-watt quick…
BUY NOW*
TOP 8
Image of Samsung SM-A715FZKUBTU smartphone
Samsung Galaxy A71 Mobile Phone; Sim Free Smartphone - Prism Crush Black (UK Version)*
  • What's in the box: Samsung Galaxy A71 Prism Crush Black smartphone, UK charger, user…
  • Video: you can film super-smooth action, putting professional mobile video at your…
  • Battery: giving you the freedom to go even further
BUY NOW*
TOP 9
Image of CUBOT CUBOT P40 smartphone
Mobile Phones, CUBOT P40 4GB+128GB Smartphones SIM Free Unlocked, 6.2 Inch Dewdrop Screen, 4G Dual SIM, Android 10,12MP Quar Rear Cameras, Three Card Slots, Face ID-Blue*
  • Face ID+ NFC+OTG+ Two-years free repair in Europe: With Face ID , You can easily…
  • Three Card Slots & 4G Dual SIM: The CUBOT P40 has 3 independent card slots: 2x…
  • 12MP Quar Rear Cameras: With the main 12MP camera, 5MP macro lens, 2MP and 0.3MP…
BUY NOW*
TOP 10
Image of KXD KXD A1 smartphone
Mobile Phone KXD A1, SIM Free Smartphone Unlocked 5.71 Inch Full Screen 16G ROM 128G Extension Android 8.1 Phones 5MP+5MP Dual Rear Cameras Dual SIM, Triple Card Slots - Green*
  • Andriod 8.1 systemThe Android OS enhances the overall stability and reduces the power…
  • 2 Nano SIM Card+1 MicroSD Card As a basic cheap smartphone, it supports 2 Sim Card…
  • 5MP Front+5MP Dual Rear CamerasEquipped with 5MP front camera and 5MP dual rear camera,…
BUY NOW*

* Affiliate link. We participate in the Amazon Associates Program. As an Amazon Associate we earn from qualifying purchases. There are no additional costs for you. For the top 10 list 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 2021/01/23 10:03 o'clock.