The iPhone SE lineup has carved a niche for itself as Apple’s most affordable entry into the iOS ecosystem. With two iterations released in quick succession—the second generation in 2020 and the third in 2022—many users wonder whether upgrading from the 2nd to the 3rd gen brings meaningful improvements or if they’re essentially the same phone under different labels. The answer isn’t as straightforward as it seems, especially when considering long-term usage, performance demands, and future software support.
While both models share a familiar design language and core functionality, key upgrades in the 3rd generation make a compelling case for those still using older iPhones or the original SE (2020). However, for users already on the 2nd gen, the decision requires a closer look at what truly matters in day-to-day use.
Design and Build: Nearly Identical, But Not Exactly
At first glance, the iPhone SE (2nd gen) and (3rd gen) appear indistinguishable. Both feature a 4.7-inch Retina HD display, Touch ID embedded in the home button, and a single-lens rear camera setup housed in a glass-and-aluminum body. They’re IP67-rated for dust and water resistance and maintain the classic iPhone form factor that appeals to fans of compact, one-handed devices.
Despite these similarities, there are subtle but notable differences:
- Color Options: The 3rd gen introduced a fresh white front panel, replacing the black bezel found on the 2nd gen, giving it a cleaner aesthetic.
- Materials: The 3rd gen uses slightly refined aluminum framing and improved internal sealing for better durability.
- 5G Support: This is the most significant hardware shift—the 3rd gen supports 5G networks, while the 2nd gen is limited to LTE.
Performance: A Generational Leap Under the Hood
The most impactful upgrade lies beneath the surface. The iPhone SE (2nd gen) runs on the A13 Bionic chip—the same processor found in the iPhone 11 series. It was powerful in 2019 and remains capable today for basic tasks like messaging, browsing, and social media.
In contrast, the 3rd gen features the A15 Bionic chip, which powered the iPhone 13 line. This chip delivers approximately 40% faster CPU performance and up to 50% faster graphics processing. More importantly, it includes a 4-core GPU (vs. 3-core in A13), enabling smoother gameplay and better multitasking.
“The A15 Bionic isn’t just about speed—it’s about longevity. Devices with this chip are likely to receive iOS updates for five years or more.” — Mark Rivera, Mobile Hardware Analyst
This performance gap translates into real-world benefits:
- Faster app launches and transitions
- Better handling of photo and video editing
- Improved AR experiences and gaming performance
- Enhanced machine learning capabilities for camera and voice recognition
Camera Comparison: Same Lens, Smarter Processing
Both models sport a 12MP f/1.8 wide-angle rear camera and a 7MP front-facing shooter. There’s no change in sensor size or lens quality. However, the 3rd gen leverages the A15’s image signal processor and computational photography advancements to deliver noticeable improvements.
Key camera enhancements in the 3rd gen include:
- Snapdragon HDR: Captures more balanced exposures in high-contrast scenes.
- Smart HDR 4: Applies more nuanced tone mapping across skin tones and textures.
- Next-gen portrait mode simulation: Improved depth estimation for better background blur.
- Improved low-light performance: Thanks to A15-powered noise reduction.
In practical terms, photos taken in dim lighting or backlit conditions show less grain and more detail on the 3rd gen. While the hardware is unchanged, the software and processing power make a tangible difference.
Connectivity and Future-Proofing
One of the most debated aspects is 5G support. The 3rd gen includes sub-6GHz 5G, which offers moderate speed increases over LTE in most urban areas. While mmWave 5G (ultra-fast but limited in availability) is absent, sub-6GHz still provides better network responsiveness and lower latency.
More than raw speed, 5G readiness is about future-proofing. As carriers phase out older networks and prioritize 5G infrastructure, having a 5G-capable device ensures longer compatibility and better service down the line.
Additionally, the 3rd gen includes:
- Wi-Fi 6 (vs. Wi-Fi 5 on 2nd gen)—faster local network speeds and better performance in crowded environments.
- Bluetooth 5.0 (same as 2nd gen).
- Improved location accuracy with dual-frequency GPS support.
Detailed Comparison Table
| Feature | iPhone SE (2nd Gen) | iPhone SE (3rd Gen) |
|---|---|---|
| Release Year | 2020 | 2022 |
| Chipset | A13 Bionic | A15 Bionic (5-core GPU) |
| Network | LTE | 5G (sub-6GHz) |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6 |
| Rear Camera | 12MP f/1.8 | 12MP f/1.8 (Smart HDR 4) |
| Front Camera | 7MP | 7MP (Improved Portrait Mode) |
| Water Resistance | IP67 (1m for 30 mins) | IP67 (improved seals) |
| Starting Storage | 64GB | 64GB |
| Price at Launch | $399 | $429 |
Real-World Example: Should Sarah Upgrade?
Sarah has been using her iPhone SE (2nd gen) since 2020. She primarily uses her phone for texting, email, light social media, and occasional photos. Her carrier recently upgraded its network to prioritize 5G traffic, and she’s noticed slower LTE speeds during peak hours.
She considered upgrading to the 3rd gen after experiencing lag when editing videos for her small business Instagram page. After testing both devices side-by-side, she found the 3rd gen rendered edits nearly twice as fast and uploaded clips quicker over 5G. The improved low-light photos also helped her product shots look more professional.
For Sarah, the $30 price difference (after trade-in) justified the upgrade—not because of flashy new features, but because the phone kept up with her evolving needs.
Is the Upgrade Worth It? A Practical Checklist
Use this checklist to determine if moving from the 2nd to 3rd gen SE makes sense for you:
- Are you still on an iPhone 8 or earlier? → Yes? The 3rd gen is a major leap.
- Do you use your phone for video calls, editing, or gaming? → Yes? A15’s extra power will help.
- Do you travel often or rely on mobile hotspots? → Yes? 5G and Wi-Fi 6 offer real advantages.
- Are you planning to keep your phone for 3+ years? → Yes? A15 ensures longer software support.
- Are you satisfied with current performance and rarely push your device? → Then the 2nd gen may still suffice.
Frequently Asked Questions
Can the iPhone SE 3rd gen run iOS 18 and beyond?
Yes. Apple typically supports iPhones for 5–6 years. Given its A15 chip and 2022 release, the 3rd gen SE is expected to receive updates through at least 2027, possibly longer.
Is the battery life significantly better on the 3rd gen?
Battery capacity is nearly identical, and Apple lists similar usage times. Real-world tests show only minor improvements due to the A15’s efficiency gains. You won’t see a dramatic difference in daily endurance.
Can I use my 2nd gen accessories with the 3rd gen?
Yes. Both models use the Lightning port, have the same dimensions, and support Qi wireless charging. Cases, chargers, and headphones remain fully compatible.
Final Verdict: Not the Same Phone
While the iPhone SE 2nd and 3rd generations look nearly identical, they are far from the same device. The 3rd gen represents a thoughtful evolution—retaining the beloved compact design while modernizing the internals for today’s connectivity and performance demands.
If you’re upgrading from an iPhone 7, 8, or even the first SE (2016), the 3rd gen is an excellent choice. Its combination of 5G, A15 chip, and improved camera processing offers a noticeably smoother experience and better longevity.
However, if you already own the 2nd gen and aren’t feeling performance limitations, the upgrade may not be urgent. For most average users, the 2nd gen remains functional and supported, though it will likely exit iOS updates sooner than its successor.








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