iPhone 16 vs iPhone 17
Published March 21, 2026 · Specs from Apple.com
Category Scorecard
Quick Verdict
The iPhone 17 is a significant upgrade from the 16 across every major category. The standard iPhone finally gets ProMotion 120Hz and Always-On Display — features reserved for the Pro lineup for the past three years. The ultrawide camera leaps from 12MP to 48MP. Battery life improves from 22 to 30 hours, and wired charging doubles from 20W to 40W. The A19 chip brings next-generation performance and Bluetooth 6.0. At the same $799 launch price, the 17 offers substantially more for the same money. If you're on a 16, the display and battery improvements alone make this a meaningful upgrade cycle.
Size Comparison
Scaled at 1.2px per mm. iPhone 17 is 2.0mm taller and 0.15mm thicker. iPhone 16 cases will not fit.
Full Specifications
| Spec | iPhone 16 | iPhone 17 |
|---|---|---|
| Launch year | 2024 | 2025 |
| Chip | A18 | A19 |
| Display | 6.1" OLED 60Hz | 6.3" OLED 120Hz |
| Always-On Display | No | Yes |
| Ultrawide camera | 12MP | 48MP |
| Front camera | 12MP | 18MP |
| Battery (video) | 22 hrs | 30 hrs |
| Wired charging | 20W | 40W |
| Action Button | No | Yes |
Category Deep-Dives
Display
This is the headline upgrade. The iPhone 17 gets a 6.3-inch ProMotion 120Hz OLED with Always-On Display — the first time these features have appeared on the standard (non-Pro) iPhone. The iPhone 16 has a 6.1-inch 60Hz panel with no Always-On. The screen also grows from 6.1 to 6.3 inches, matching the Pro's size. If you've been frustrated watching Pro users scroll smoothly at 120Hz while you're stuck at 60, the 17 finally closes that gap.
Performance
The A19 in the iPhone 17 succeeds the A18, with 6 CPU cores and 5 GPU cores. Both chips fully support Apple Intelligence, so the AI feature set is comparable. The A19's improvements are most visible in sustained GPU performance for gaming, faster machine learning inference for on-device AI features, and better efficiency for the Always-On display without hammering battery life. The A19 also enables Bluetooth 6.0, a first for iPhone.
Camera
Both phones have a 48MP f/1.6 main camera, but the iPhone 17 raises the ultrawide from 12MP to 48MP — matching the main lens in resolution and enabling dramatically sharper wide-angle shots and lossless crops from the ultrawide. The front camera also jumps from 12MP to 18MP, a significant improvement for selfies and FaceTime. Both retain the 2x optical-quality zoom via in-sensor crop, and both support Camera Control.
Battery
The battery story is exceptional. iPhone 17 rates at 30 hours of video playback versus 22 hours on the 16 — a 36% jump that puts it comfortably into two-day territory for average users. Wired charging doubles from 20W to 40W, meaning a full charge from near-empty takes roughly 45 minutes less than on the 16. MagSafe remains at 25W on both. This battery improvement is one of the biggest year-over-year gains in standard iPhone history.
Design & Build
The iPhone 17 is 2mm taller (149.6mm vs 147.6mm), 0.15mm thicker (7.95mm vs 7.8mm), and 7g heavier (177g vs 170g) than the 16. Both use aluminum frames with glass backs and carry IP68. The 17 adds the Action Button that was previously exclusive to the Pro lineup, giving you a hardware shortcut button in addition to Camera Control. The 16's slightly more compact footprint may appeal to those who prefer the smaller form, but the 17's extra screen real estate justifies the size increase.
Value
Both launched at $799 — same price, dramatically more phone. The 17 drops the 128GB base option; minimum storage is 256GB. That's a better value even if it removes the entry point. On the used market in early 2026, the 16 sells for $550–650 while the 17 commands $700–750. For buyers choosing new, the 17 is the clear choice. For used buyers on a budget, the 16 at $200 less remains excellent for another 2–3 years of support.
Who Should Buy Which
Buy the iPhone 16 if…
- You find it significantly discounted used vs. the 17
- You prefer the smaller 6.1" form factor for one-handed use
- You bought it recently and the 17's features don't justify the upgrade cost
- The 60Hz display isn't something you've ever noticed or cared about
Buy the iPhone 17 if…
- You want 120Hz ProMotion and Always-On Display — finally on a standard iPhone
- Battery life is a daily frustration and you want real two-day endurance
- You shoot wide-angle photos and want 48MP ultrawide quality
- You video call frequently and want the 18MP front camera upgrade
Case Compatibility
iPhone 16 cases will NOT fit iPhone 17. The iPhone 17 is 2.0mm taller (149.6mm vs 147.6mm) and 0.15mm thicker (7.95mm vs 7.8mm). This height difference alone is enough to misalign all button cutouts and the camera module position. Budget for new cases — none of your existing iPhone 16 cases will carry over.
Frequently Asked Questions
What are the biggest upgrades from iPhone 16 to iPhone 17?
The iPhone 17 makes major strides in three areas: display (120Hz ProMotion and Always-On, up from static 60Hz on a larger 6.3" screen), battery (30 hours vs 22 hours of video playback, plus 40W wired charging vs 20W), and camera (48MP ultrawide vs 12MP, and 18MP front camera vs 12MP). The A19 chip and Action Button are also new additions.
Will iPhone 16 cases fit iPhone 17?
No. The iPhone 17 is 2mm taller (149.6mm vs 147.6mm) and 0.15mm thicker (7.95mm vs 7.8mm). These differences mean iPhone 16 cases will have misaligned camera cutouts and button openings. You'll need new cases when upgrading to the 17.
Does iPhone 17 have ProMotion 120Hz?
Yes. The iPhone 17 is the first standard (non-Pro) iPhone to feature a ProMotion adaptive 120Hz display along with Always-On Display. The iPhone 16 remains at 60Hz. This is one of the most significant spec advances the standard iPhone line has received — scrolling, animations, and gaming all feel noticeably smoother at 120Hz.