AI comparison report
iPhone 4 vs iPhone 5
The iPhone 5 is overwhelmingly superior to the iPhone 4, delivering 4G LTE speeds, double the RAM, a larger 4.0-inch display, and vastly improved processing po…
Who wins: iPhone 4 or iPhone 5?
Choose iPhone 5 first, as it delivers substantial generational leaps across every key metric, including double the RAM (1 GB vs. 512 MB), up to 2x faster A6 processing, 4G LTE support, a larger 4.0-inch display, and longer OS support up to iOS 10.3.4.
Based on our analysis across 5 dimensions with 20 sources, iPhone 4 scores 4.5/10 overall while iPhone 5 scores 8.8/10 overall.
| Dimension | iPhone 4 | iPhone 5 |
|---|---|---|
| Display Size and Form Factor | 6.5/10 | 9/10 |
| Processing Performance and RAM | 4/10 | 9/10 |
| Cellular and Port Connectivity | 3/10 | 9/10 |
| Camera Capabilities and Video Recording | 4.5/10 | 8.5/10 |
| Software Lifespan and iOS Support | 4.5/10 | 8.5/10 |
| Overall | 4.5/10 | 8.8/10 |
Should I choose iPhone 4 or iPhone 5?
Verdict: Choose iPhone 5 first, as it delivers substantial generational leaps across every key metric, including double the RAM (1 GB vs. 512 MB), up to 2x faster A6 processing, 4G LTE support, a larger 4.0-inch display, and longer OS support up to iOS 10.3.4.
The iPhone 5 is overwhelmingly superior to the iPhone 4, delivering 4G LTE speeds, double the RAM, a larger 4.0-inch display, and vastly improved processing power.
The iPhone 5 comprehensively outperforms the iPhone 4 across all validated metrics. It introduces an aluminum unibody that is 18 percent thinner (7.6 mm vs. 9.3 mm) and 20 percent lighter (112 g vs. 137 g) while expanding the screen to a 4.0-inch 16:9 display (1136x640) compared to the iPhone 4's 3.5-inch 3:2 screen (960x640). Internally, the iPhone 5 features a dual-core Apple A6 chip delivering up to 2x faster performance and doubles the memory to 1 GB RAM over the iPhone 4's single-core Apple A4 chip with 512 MB RAM. Cellular speeds jump from legacy 3G to 4G LTE, alongside the modern reversible 8-pin Lightning connector replacing the 30-pin dock. Camera capabilities improve from 5 MP with 720p video to 8 MP with 1080p recording, paired with a 1.2 MP FaceTime HD front sensor. Finally, the iPhone 5 offers superior software longevity, supporting updates up to iOS 10.3.4 versus the iPhone 4's cutoff at iOS 7.1.2.
Best for iPhone 4
- Users who prefer a compact 3.5-inch display with a classic 3:2 aspect ratio
- Collectors looking for the original stainless steel and glass-sandwich design
- Environments requiring compatibility with legacy 30-pin dock connector accessories
- Users specifically running early iOS releases capped at iOS 7.1.2
Best for iPhone 5
- Users requiring faster performance with the dual-core Apple A6 chip and 1 GB of RAM
- Those needing high-speed 4G LTE cellular connectivity
- Users wanting a lighter (112 g) and thinner (7.6 mm) aluminum unibody build
- Users who prefer a taller 4.0-inch 16:9 Retina display (1136x640 resolution)
- Better photography with an 8 MP rear camera (1080p video) and 1.2 MP FaceTime HD front camera
- Modern cable convenience via the reversible 8-pin Lightning connector
- Longer software lifecycle and broader app compatibility up to iOS 10.3.4
When not to compare directly
Do not compare them directly if evaluating compatibility with specific vintage hardware ecosystems, such as legacy 30-pin speaker docks versus modern Lightning accessories, or if targeted testing requires specific unsupported legacy operating systems like iOS 4 versus iOS 10.
What are the key differences between iPhone 4 and iPhone 5?
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Display Size and Form Factor
While the iPhone 4 utilizes a 3.5-inch 3:2 screen in a 137-gram glass body, the iPhone 5 features a taller 4.0-inch 16:9 display in a significantly lighter 112-gram aluminum chassis.
iPhone 4: The iPhone 4 features a 3.5-inch Retina display with a 3:2 aspect ratio (960x640 resolution) in a glass and stainless steel chassis measuring 9.3 mm in thickness and weighing 137 grams.
iPhone 5: The iPhone 5 upgrades to a taller 4.0-inch 16:9 Retina display (1136x640 resolution) housed in an aluminum unibody that is 7.6 mm thin and weighs 112 grams, making it 18 percent thinner and 20 percent lighter than its predecessor.
Scores — iPhone 4: 6.5/10, iPhone 5: 9/10
Changes in screen size, aspect ratio, and device weight directly dictate one-handed usability, content consumption, and ergonomics.
Sources: iPhone 4 - Technical Specifications, iPhone 5 - Technical Specifications
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Processing Performance and RAM
The iPhone 5 offers double the memory and significantly faster processing with its 1 GB of RAM and Apple A6 chip compared to the 512 MB of RAM and Apple A4 chip in the iPhone 4.
iPhone 4: The iPhone 4 is equipped with an Apple A4 system-on-chip paired with 512 MB of RAM.
iPhone 5: The iPhone 5 features a custom dual-core Apple A6 system-on-chip that delivers up to 2x faster CPU and graphics performance alongside 1 GB of RAM.
Scores — iPhone 4: 4/10, iPhone 5: 9/10
System-on-chip architecture and memory capacity determine multitasking efficiency, graphical fidelity, and long-term operating system upgrade support.
Sources: iPhone 4, Apple Introduces iPhone 5
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Cellular and Port Connectivity
While the iPhone 4 is limited to 3G data speeds and uses a legacy 30-pin dock connector, the iPhone 5 offers high-speed 4G LTE networking alongside an all-digital 8-pin Lightning connector.
iPhone 4: The iPhone 4 relies on legacy 3G cellular networking and Apple's wide 30-pin dock connector for charging and physical data transfer.
iPhone 5: The iPhone 5 introduces high-speed 4G LTE cellular connectivity and features an all-digital, reversible 8-pin Lightning connector.
Scores — iPhone 4: 3/10, iPhone 5: 9/10
Network support governs mobile internet speeds, while physical connector interfaces determine peripheral compatibility and cable convenience.
Sources: iPhone 4 - Technical Specifications, iPhone 5 - Technical Specifications
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Camera Capabilities and Video Recording
The iPhone 5 significantly outperforms the iPhone 4 by offering an 8 MP rear camera with 1080p HD recording and a 1.2 MP front camera compared to the iPhone 4's 5 MP rear camera with 720p recording and VGA front sensor.
iPhone 4: The iPhone 4 includes a 5-megapixel rear camera capable of 720p HD video recording at up to 30 fps and a VGA-quality front-facing camera for FaceTime calling.
iPhone 5: The iPhone 5 features an upgraded 8-megapixel iSight rear camera with 1080p HD video recording and a 1.2-megapixel FaceTime HD front camera supporting 720p HD video.
Scores — iPhone 4: 4.5/10, iPhone 5: 8.5/10
Upgrades in sensor resolution, lens optics, and front-facing camera quality significantly enhance photo sharpness and video call fidelity.
Sources: iPhone 4 - Technical Specifications, iPhone 5 - Technical Specifications
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Software Lifespan and iOS Support
The iPhone 5 supported software updates up to iOS 10.3.4, whereas the iPhone 4 reached its end-of-life earlier at iOS 7.1.2.
iPhone 4: The iPhone 4 launched with iOS 4 and received software updates up to iOS 7.1.2, covering four major iOS generations before support ended.
iPhone 5: The iPhone 5 shipped with iOS 6 and was supported up to iOS 10.3.4, spanning five major iOS generations and providing a significantly longer functional lifespan.
Scores — iPhone 4: 4.5/10, iPhone 5: 8.5/10
The maximum supported iOS version determines app compatibility, security patch availability, and overall device usability lifespan.
Sources: Apple iPhone 4 - Full phone specifications, Apple iPhone 5 - Full phone specifications
What are the pros and cons of iPhone 4 vs iPhone 5?
iPhone 4
Strengths
- The iPhone 4 introduced a high-density 3.5-inch Retina display with a 960x640 resolution in a compact glass and stainless steel chassis.
- The iPhone 4 provided software update support across four major iOS generations, starting from iOS 4 through iOS 7.1.2.
Weaknesses
- The iPhone 4 is limited to a single-core Apple A4 system-on-chip with only 512 MB of RAM, delivering significantly lower processing and multitasking performance than the iPhone 5.
- The iPhone 4 relies on legacy 3G cellular networking and the bulkier 30-pin dock connector.
- The iPhone 4 features a lower-resolution 5 MP rear camera limited to 720p video recording and a basic VGA-quality front-facing camera.
- The iPhone 4 is thicker at 9.3 mm and heavier at 137 grams despite offering a smaller 3.5-inch screen.
- Software support for the iPhone 4 ended earlier at iOS 7.1.2 compared to iOS 10.3.4 on the iPhone 5.
iPhone 5
Strengths
- The iPhone 5 features a larger, taller 4.0-inch 16:9 Retina display (1136x640 resolution) while remaining 18 percent thinner at 7.6 mm and 20 percent lighter at 112 grams in an aluminum unibody build.
- The iPhone 5 includes a custom dual-core Apple A6 chip delivering up to 2x faster CPU and graphics performance alongside double the memory at 1 GB of RAM.
- The iPhone 5 introduces high-speed 4G LTE cellular connectivity and a reversible, all-digital 8-pin Lightning connector.
- The iPhone 5 upgrades camera hardware to an 8 MP iSight rear sensor with 1080p HD video recording and a 1.2 MP FaceTime HD front camera with 720p HD video.
- The iPhone 5 offered longer software longevity, spanning five major iOS generations from iOS 6 up to iOS 10.3.4.
Weaknesses
- The iPhone 5 moved away from the legacy 30-pin dock connector standard, requiring new Lightning cables and adapters for older accessories.
Where does this data come from?
- iPhone 4 - Technical Specifications
- iPhone 5
- iPhone 4
- Apple Introduces iPhone 5
- Every iPhone released, in order
- iPhone Evolution Timeline 2007-2026 / iOS Evolution [Chart]
- iPhone 4 - Apple Wiki - Fandom
- iPhone 5 - Apple Wiki - Fandom
- Apple iPhone 4 - Full phone specifications
- Apple iPhone 5 - Full phone specifications
- Apple iPhone 4 Full Specifications
- iPhone 5: Features and Launch Details | PDF
- Apple Presents iPhone 4
- iPhone 5 - Technical Specifications
- iPhone 4 Release Date and Overview | PDF | I Phone
- Apple iPhone 5 Full Specifications
- iPhone 4: The Definitive Guide - TPM
- Apple iPhone 5 Technical Specifications
- iPhone 4 - Full Phone Information, Tech Specs
- Full iPhone 5 specifications (specs) in detail