7 Best-Selling Smartphones of 2021

7 Best-Selling Smartphones of 2021

If you want to buy a smartphone with all the necessary features, here is a run-down of 7 best-selling smartphones of 2021 from Apple, Samsung, and Xiaomi.

  • The smartphone industry has been flourishing day by day, with new companies emerging every other day
  • Despite new companies coming to the market, Apple and Samsung are two strong contenders in the smartphone world
  • Xiaomi also emerged as a strong smartphone brand and became the number one global smartphone brand in June 2021

According to Gartner, a technology research and consulting company, smartphone sales experienced a 6% rise in 2021. During the first three quarters of 2021, more than 1.04 billion smartphones were sold. These stats indicate that nearly 88.6 million more smartphones were sold in this period than in the first nine months of 2020.

Although smartphone sales experienced a double-digit surge in the first two quarters of 2021, global smartphone sales declined in the third quarter by 6.8% annually.

The primary reason for this decline was the emergence of COVID-19. The pandemic-induced shortage of cellphone key components delayed smartphone production on a global level. As a result, sales took a severe dip from July to September.

Gartner declared the lack of components like radio frequency and power management integrated circuits to be the reason for this decline. They believe it disrupted the supply-demand equilibrium due to which end-users were burdened with limited choices at the point of sale.

Top 7 Best-Selling Smartphones of 2021

Despite the global decline in smartphone sales, some smartphones have continued to sell and perform well.

Below, we have reviewed the seven best-selling smartphones during the first three quarters of 2021. So, continue reading to find one that attracts you and fulfills your requirements.


According to industry data, Apple iPhone 12 secured the world’s best-selling 5G smartphone status during the first nine months of 2021.

Apple released three other models besides iPhone 12, including the iPhone 12 mini, iPhone 12 Pro, and iPhone 12 Pro Max. However, iPhone 12 managed to get the most attention from users.

The coronavirus-led supply chain disruptions led to a delayed launch of this model. However, iPhone 12 still managed to attract a substantial customer base. At the time of launch, iPhone 12, with its 6.1 inches display, was selling at $945. However, now you can get iPhone 12 refurbished and used at much cheaper rates.


Although it launched late, towards the end of 2021, Samsung did not hold back with its Galaxy A12. It enjoyed the status of being one of the most-selling budget smartphones by Samsung. Besides, it is one of Phone Daddy’s best refurbished Android phones in 2022.

Samsung A12 comes with a strong battery of 5000mAh that can easily last more than two days between charges. Besides, the 6.5 inches display makes the user experience fun and bright. It features a quad-camera system on the back, making photos high resolution.

According to Samsung, the A12 has a defense-grade Knox security platform supported by a fingerprint sensor on the side.


Initially launched in September 2019 at $699, the iPhone 11 still attracts customers even after 2.5 years of its launch. Moreover, you can find used and refurbished iPhone 11 at affordable prices from different online retailers, like Phone Daddy.

The iPhone 11 has a 6.1 inches large Liquid Retina Display. The 12MP dual-lens rear camera does not rely on face detection for taking portrait mode pictures. It offers 4GB RAM and a 3110mAh battery.

Apple iPhone 11 is an excellent low-cost option for users who want to enjoy the iOS experience without breaking the bank. 


Another one from Apple’s 12 series is the iPhone 12 Pro Max, launched in October 2020. It initially sold at $1,199 in the US. Now, you can find used iPhone 12 Pro Max unlocked at relatively lower prices.

The iPhone 12 Pro Max has a large display of 6.7 inches – currently the largest display in all Apple iPhones. Moreover, this model also offers the highest resolution of about 3.5 million pixels in the entire brand.

Its 5G network compatibility became an instant favorite among professional users who wanted a bigger screen and quick internet speed. The 5G network is usually 100 times faster than the 4G network.


Apple seems to be ruling the best-selling section of smartphones in 2021, having its fourth smartphone on the list.

Initially sold at the price of $1,099, the iPhone 12 Pro has a screen size of 6.1 inches. It is a water-resistant smartphone with an IP68 rating, and it can stay submerged in water for about half an hour.


Xiaomi Redmi 9A was also launched in 2020 but continued to grab attention during 2021. This budget phone by the Chinese manufacturer became highly popular in different countries worldwide, especially India – the 2nd most populous country in the world.

In December 2021, Xiaomi Redmi 9A was the 7th most-selling smartphone globally.

Redmi 9A comes with a 5000mAh battery, and according to the manufacturer, it offers uninterrupted connectivity for nearly two days. It has a 6.53 inches large screen and a face-unlock feature with artificial intelligence. This feature provides secure, easy, and quick access to your smartphone.

When it comes to the camera, Redmi 9A flaunts a 13MP rear camera as well as a 5MP selfie camera. It offers high-resolution pictures with bright colors.


Coming next to Redmi 9A is the Redmi Note 9 as one of the most-selling smartphones during the first nine months of 2021.

Redmi Note 9 packs a heavy-duty octa-core processor with a GPU frequency of 1000MHz and a maximum frequency of 2.0GHz. These features ensure a better user experience with improved efficiency.

The Final Verdict

This article discussed 7 of the best-selling smartphones of 2021. While COVID-19 hit the smartphone industry really bad, declining their sales significantly, these smartphones continued selling. Among other brands, Apple’s iPhones appeared to have grabbed the most market.

If you want to get your hands on the latest Apple or Samsung smartphones, Phone Daddy has got you covered. Click here to find out the top models from these brands at affordable rates.

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