Some mobile phones support use of two SIM cards, described as dual SIM operation. When a second SIM card is installed, the phone may allow users to switch between two separate mobile network services manually, have hardware support for keeping both connections in a "standby" state for automatic switching, or have two transceivers to maintain both network connections at once.
Nokia's strategic nomenclature can be traced back in 2005 when the Nseries line was launched, offering devices with flagship specifications and premium hardware at various price points. These devices were considered the "bread and butter" of the company and were often positioned to showcase their latest technologies. Thanks to the newfound consumer and enterprise interest in smartphones at the time, the company introduced four additional collections to diversify their product portfolio and meet demands in most market segments. These new phone series were named Eseries, targeting small business and enterprise customers; Xseries, providing consumer-grade multimedia-focused devices; Cseries, which Nokia used to target both the low-end and mid-range market segments; and Tseries, for devices exclusive to the Chinese market.
The Nokia Lumia 630 is a smartphone developed by Microsoft Mobile that runs Microsoft's Windows Phone 8.1 operating system. It was announced on 2 April 2014, at Microsoft Build 2014 and scheduled to be released in July 2014. It has a Qualcomm Snapdragon 400 SoC with a quad-core processor and Adreno 305 GPU. Additionally, it has a 4.5-inch display and a 5 MP camera. The Lumia 635 is similar but 4G-compatible, lacks a dual-SIM version and comes in a different finish, while the Lumia 636 and 638 are identical, but come with 1 GB of RAM and are currently available only in China and India respectively.
The Nokia 101 is an ultra-basic dual-SIM mobile phone by Nokia. It is primarily geared for users in developing countries, or for people who need a simple communications device with FM radio and music playback.
Nokia 130 and Nokia 130 Dual SIM are Nokia-branded entry-level feature phones from HMD Global. Originally introduced in September 2014 by Microsoft Mobile, the 130 supports one Mini-SIM card and 130 Dual SIM supports two Mini-SIM cards. The cost will be equivalent of 19 Euros when bought unlocked and SIM-free. Its available colors are red, black, and white, depending on region and market.
The Nokia 215 and Nokia 215 Dual SIM are Nokia-branded dual-band GSM feature phones by Microsoft Mobile. The phones were released in the first quarter of 2015, in the Middle East, Africa, Asia, and Europe. They are available in black, white, and bright green.
The Nokia 3-digit series are a series of feature and smartphones by HMD Global and previously by Microsoft Mobile and Nokia, generally aimed at developing markets.
Nokia Series 30+ is a software platform and application user interface used for Nokia-branded mobile devices. The platform was introduced by Nokia in September 2013, first appearing on the Nokia 108, and has been the main Nokia feature phone operating system after the end of the Series 30 and Series 40 platforms in 2014. Despite the similar name and user interface, S30+ is technically completely different and unrelated to S30.
The Nokia 105 is a feature phone manufactured by Nokia. It was first unveiled at the Mobile World Congress (MWC) in February 2013 and was released in the second quarter of 2013, aimed at markets in developing countries.
The Nokia 105 (2015) and Nokia 105 Dual SIM (2015) are Nokia-branded feature phones originally developed by Microsoft Mobile. The phones were originally released on 3 June 2015, as a revival of the original Nokia 105, and sold again by HMD Global. The Nokia 105 (2015) has one SIM card slot, and the Nokia 105 Dual SIM (2015) with two slots. The selectable colours are black, white and cyan.
The Nokia 222 and Nokia 222 Dual SIM are Nokia-branded dual-band GSM candybar-type phones, originally developed by Microsoft Mobile. The phones were originally released in the third quarter of 2015, in the Middle East, Africa, Asia, and Europe. Then, were sold again by HMD Global. They are available in black and white.
The following tables are comparisons of the specifications of Microsoft Lumia smartphones from within the same generation. Lumia devices were developed and sold by Nokia until the acquisition of its mobile phone division by Microsoft in early 2014. The Nokia brand continued to be used on new models until the release of the Microsoft Lumia 535 in November 2014.
The Nokia 230 and Nokia 230 Dual SIM are Nokia-branded feature phones originally developed by Microsoft Mobile. The phones were originally released in December 2015, and sold again by HMD Global in November 2018. The Nokia 230 has one SIM card slot, and the Nokia 230 Dual SIM with two slots. Initially, the phones were only released in black and white, but HMD would later add dark blue and light gray color options, after the release of Nokia 106 (2018) in November 2018.
Human Mobile Devices (HMD), formally HMD Global, is a Finnish mobile phone manufacturer. The company is made up of the mobile phone business that the Nokia Corporation sold to Microsoft in 2014, then bought back in 2016. HMD began marketing Nokia-branded smartphones and feature phones on 1 December 2016. The company has exclusive rights to the Nokia brand for mobile phones through a licensing agreement. The HMD brand was initially only used for corporate purposes and does not appear in advertising, whereas the name "Nokia Mobile" is used on social media. As it was launched, the abbreviation HMD stood for Hon Hai Mobile Devices. This was in reference to the main shareholder at the time of its creation: the Taiwanese group Foxconn. In January 2024, HMD rebranded to 'Human Mobile Devices', and will use their own branding on future devices alongside that of Nokia.
Nokia 150 and Nokia 150 Dual SIM are Nokia-branded entry-level mobile phones from HMD Global. Originally introduced in December 2016, as the first Nokia-branded devices by HMD Global, the 150 supports one Mini-SIM card and 150 Dual SIM supports two Mini-SIM cards.
The Nokia 6 is a Nokia-branded mid-range smartphone running on Android. It is the first smartphone from the Finnish company HMD Global, created through the partial divestment of Nokia's devices division; the first Nokia-branded smartphone since the Lumia 638; and the first Nokia-branded Android smartphone since the short-lived Nokia X2 in 2014. The phone was first announced for sale in China on January 8, 2017, with a global version announced the following month.
Nokia 130 (2017) is a Nokia-branded mobile phone developed by HMD Global. It was released on 17 July 2017 and is available in a Single and Dual-SIM card configuration. The selectable colours are red, grey and black.
The Nokia 7 is a mid-range Nokia-branded smartphone running Android, by HMD Global. It was launched on 19 October 2017 and was released on 24 October exclusively in China.
The Nokia 7 Plus is a Nokia-branded upper-mid-range smartphone running the Android operating system. It was announced on 25 February 2018, along with four other Nokia-branded phones.
The Nokia 5310 (2020) is a Nokia-branded feature phone developed by HMD Global. It was announced on 19 March 2020 alongside the Nokia 1.3, Nokia 5.3 and Nokia 8.3 5G, as a revival of the original Nokia 5310 produced c. 2007.
