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%Begin What Do All Those Gs Mean in Wireless Service? Menu Lifewire Tech for Humans Newsletter!
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Search Close GO Internet, Networking, & Security > The 5G Connection Corner 626 626 people found this article helpful
1G, 2G, 3G, 4G, & 5G Explained
Understand the technology behind your cell phone
By Adam Fendelman Adam Fendelman Writer University of Missouri-Columbia Adam Fendelman is a syndicated technology writer and senior web designer whose focus was on web analytics and web design among other things. lifewire's editorial guidelines Updated on September 3, 2021 Reviewed by Jon Fisher Reviewed by Jon Fisher Wichita Technical Institute Jonathan Fisher is a CompTIA certified technologist with more than 6 years' experience writing for publications like TechNorms and Help Desk Geek.
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lifewire's editorial guidelines Tweet Share Email Tweet Share Email The 5G Connection Corner Browsers Cloud Services Error Messages Family Tech Home Networking 5G Antivirus Around the Web Identifying the strengths of the underlying technology of a cell phone is simple as long as you understand the meaning of 1G, 2G, 3G, 4G, and 5G. 1G refers to the first generation of wireless cellular technology, 2G refers to the second generation of technology, and so on.
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As you might expect, subsequent generations are faster and contain improved or new features. Most wireless carriers currently support both 4G and 3G technology, which is handy when your location allows your phone to operate only at 3G speeds. Since 1G was introduced in the early 1980s, a new wireless mobile telecommunications technology has been released roughly every 10 years. All of them refer to the technology used by the mobile carrier and device itself.
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They have different speeds and features that improve on the previous generation. The next generation is 5G, which launched in 2020. Lifewire / Chloe Giroux
1G Voice Only
Remember analog phones back in the day?
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Cell phones began with 1G technology in the 1980s. 1G is the first generation of wireless cellular technology.
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1G supports voice only calls. 1G is analog technology, and the phones using it had poor battery life and voice quality, little security, and were prone to dropped calls. The maximum speed of 1G technology is 2.4 Kbps.
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2G SMS and MMS
Cell phones received their first major upgrade when their technology went from 1G to 2G. This leap took place in Finland in 1991 on GSM networks and effectively took cell phones from analog to digital communications. The 2G telephone technology introduced call and text encryption, along with data services such as SMS, picture messages, and MMS.
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Although 2G replaced 1G and is superseded by later technology versions, it's still used around the world. The maximum speed of 2G with General Packet Radio Service (GPRS) is 50 Kbps.
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The max theoretical speed is 384 Kbps with Enhanced Data Rates for GSM Evolution (EDGE). EDGE+ can get up to 1.3 Mbps.
2 5G and 2 75G Data Finally
Before making the major leap from 2G to 3G wireless networks, the lesser-known 2.5G and 2.75G were interim standards that bridged the gap to make data transmission — slow data transmission — possible.
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2.5G introduced a new packet-switching technique that was more efficient than 2G technology. This led to 2.75G, which provided a theoretical threefold speed increase. AT&T was the first GSM network to support 2.75G with EDGE in the U.S.
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2.5G and 2.75G were not defined formally as wireless standards. They served mostly as marketing tools to promote new cell phone features to the public.
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3G More Data Video Calling and Mobile Internet
The introduction of 3G networks in 1998 ushered in faster data-transmission speeds, so you could use your cell phone in more data-demanding ways such as for video calling and mobile internet access. The term "mobile broadband" was first applied to 3G cellular technology. Like 2G, 3G evolved into the much faster 3.5G and 3.75G as more features were introduced to bring about 4G.
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The maximum speed of 3G was around 2 Mbps for non-moving devices and 384 Kbps in moving vehicles.
4G The Current Standard
The fourth generation of networking, which was released in 2008, is 4G.
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It supports mobile web access like 3G does and also gaming services, HD mobile TV, video conferencing, 3D TV, and other features that demand high speeds. The max speed of a 4G network when the device is moving is 100 Mbps. The speed is 1 Gbps for low-mobility communication such as when the caller is stationary or walking.
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Most current cell phone models support both 4G and 3G technologies.
5G The Next Standard
5G is a wireless technology with a limited rollout that's intended to improve on 4G.
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5G promises significantly faster data rates, higher connection density, much lower latency, and energy savings, among other improvements. The anticipated theoretical speed of 5G connections is up to 20 Gbps per second. How Are 4G and 5G Different?
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FAQ When will 2G be phased out?
2G networks are being closed down worldwide to save operational costs and use radio frequencies for new networks.
2G networks are being closed down worldwide to save operational costs and use radio frequencies for new networks.
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For instance, AT&T and T-Mobile will phase out their 2G networks by 2022. As a result, some older devices will no longer be able to connect. When was the iPhone 2G released?
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The iPhone, retroactively named the iPhone 2G, was the first iPhone model offered by Apple. It was released on June 29, 2007 Was this page helpful? Thanks for letting us know!
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5G: Everything You Need to Know How Fast Is a Cellphone Modem for Wireless Internet? 5G Availability Around the World What Is HSPA and HSPA+ on 3G Cellphones 5G: Here's Everything That's Changing 5G Speed: How to Understand the Numbers 5GE vs.
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