A smartphone, often simply called a phone, is a mobile device that combines the functionality of a traditional mobile phone with advanced computing capabilities. It typically has a touchscreen interface, allowing users to access a wide range of applications and services, such as web browsing, email, and social media, as well as multimedia playback and streaming. Smartphones have built-in cameras, GPS navigation, and support for various communication methods, including voice calls, text messaging, and internet-based messaging apps.
The refresh rate, also known as vertical refresh rate or vertical scan rate in reference to terminology originating with the cathode-ray tubes (CRTs), is the number of times per second that a raster-based display device displays a new image. This is independent from frame rate, which describes how many images are stored or generated every second by the device driving the display. On CRT displays, higher refresh rates produce less flickering, thereby reducing eye strain. In other technologies such as liquid-crystal displays, the refresh rate affects only how often the image can potentially be updated.
1080p is a set of HDTV high-definition video modes characterized by 1,920 pixels displayed across the screen horizontally and 1,080 pixels down the screen vertically; the p stands for progressive scan, i.e. non-interlaced. The term usually assumes a widescreen aspect ratio of 16:9, implying a resolution of 2.1 megapixels. It is often marketed as Full HD or FHD, to contrast 1080p with 720p resolution screens. Although 1080p is sometimes referred to as 2K resolution, other sources differentiate between 1080p and (true) 2K resolution.
1440p is a family of video display resolutions that have a resolution of 1440 pixels along one side. In a display with a landscape orientation, 1440p refers to the vertical resolution. The p stands for progressive scan, i.e. non-interlaced. The 1440 pixel vertical resolution is double the vertical resolution of 720p, and one-third more than 1080p. QHD or WQHD is the designation for a commonly used display resolution of 2560 × 1440 pixels in a 16:9 aspect ratio. As a graphics display resolution between 1080p and 4K, Quad HD is often used in smartphone displays, and for computer and console gaming.
The Samsung Galaxy S series is a line of Android-based smartphones and tablet computers produced by Samsung Electronics. In conjunction with the foldable Galaxy Z series, the series serves as Samsung's flagship smartphone lineup, and is the high-end line of the wider Samsung Galaxy family of Android devices.
The Razer Phone is an Android-based phablet designed and developed by Razer Inc., released on November 15, 2017. While the device was designed mainly for mobile gamers, reviewers such as Engadget have noted that it is also good enough for everyday use.
The Oppo Find X2 and Find X2 Pro are Android-based smartphones manufactured by Oppo, unveiled on 6 March 2020.
OnePlus 8 and OnePlus 8 Pro are Android-based smartphones manufactured by OnePlus, unveiled on April 14, 2020. They became available for purchase in the United States on April 29, 2020.
The ROG Phone 3 is an Android gaming smartphone made by Asus as the third generation of ROG smartphone series following the second generation ROG Phone II, announced on 22 July 2020.
The POCO X3, POCO X3 NFC and POCO X3 Pro are Android-based smartphones developed by Xiaomi, announced on 7 and 22 September 2020. The phone has a FHD+ IPS LCD 120 Hz 6.67-inch display, a 48 MP wide, 8 MP ultra-wide, 2 MP macro, and 2 MP depth camera, a 5160 mAh battery, up to 8 GB RAM and a side-mounted fingerprint sensor.
The Sony Xperia 5 II is an Android smartphone marketed and manufactured by Sony Mobile. Part of Sony's flagship Xperia series, the phone was announced on September 17, 2020. A less expensive and more compact variant of the Xperia 1 II, the Xperia 5 II belongs to Sony's handset lineup of 2020, which includes the flagship Xperia 1 II and the entry-level Xperia 10 II. The phone was released worldwide in October 2020.
The OnePlus 8T is an Android-based smartphone designed and marketed by OnePlus. It is the sixteenth phone released by OnePlus, and was announced on 14 October 2020, and released on 16 October 2020. A variant of this phone is sold by T-Mobile US as the OnePlus 8T+.
The Redmi Note 10 is a line of Android-based smartphones as part of the Redmi Note series by Redmi, a sub-brand of Xiaomi Inc. This series were introduced in March 2021 in India and worldwide and May 2021 in China. It succeeds the Redmi Note 9 series of smartphones, which were introduced in 2020.
The Samsung Galaxy A53 5G is a mid-range Galaxy phone developed and manufactured by Samsung Electronics as a part of its Galaxy A series. The phone was announced on 17 March 2022 at Samsung Galaxy Unpacked event alongside the Galaxy A33 5G and Galaxy A73 5G.
The Samsung Galaxy A73 5G is a mid-high range Android-based smartphone developed and manufactured by Samsung Electronics as a part of its Galaxy A series. The phone was announced on 17 March 2022 at Samsung Galaxy Unpacked event alongside the Galaxy A33 5G and Galaxy A53 5G.
The Samsung Galaxy M23 5G is an Android-based smartphone designed, developed and marketed by Samsung Electronics. This phone was announced on March 04, 2022.
Xiaomi MIX Fold 2 is an Android-based foldable smartphone manufactured by Xiaomi. For the first time in the MIX Fold series, the phone developed in partnership with Leica camera, it was announced on August 11, 2022.
The Xiaomi 13 is a flagship smartphone from Chinese electronics company Xiaomi, released in December 2022. It is part of the Xiaomi 13 series, which also includes the Xiaomi 13 Pro and Xiaomi 13 Lite. The device features premium build quality, advanced camera systems, and top-tier performance, catering to consumers who prioritize high-end specifications in a flagship phone.
The Samsung Galaxy Z Fold 5 is an Android-based foldable smartphone that was announced by Samsung Electronics on July 26, 2023. The unveiling marked the first time that the Galaxy Unpacked event was held in the company's home country of South Korea. The phone was released on August 11, 2023.
