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The iPhone 17 launched in the U.S. for $799 with 256GB of storage, while the iPhone 15 Plus launched at $899 with 128GB. That makes the newer phone $100 cheaper at launch and gives its base model twice the storage. The 15 Plus still has the larger screen: 6.7 inches versus 6.3 inches. Choose between them based on screen size, the iPhone 17’s newer display and camera features, and the actual price and condition of the phone you can buy today.
iPhone 15 Plus vs iPhone 17 specs at a glance
| Specification | iPhone 15 Plus | iPhone 17 |
|---|---|---|
| Display | 6.7-inch Super Retina XDR | 6.3-inch OLED Super Retina XDR |
| Refresh rate and always-on | Not listed in the cited Apple comparison excerpt | ProMotion up to 120Hz; Always-On display |
| Chip | A16 Bionic | A19 |
| Rear cameras | Dual-camera system: 48MP Main and Ultra Wide | 48MP Dual Fusion system: 48MP Main and Ultra Wide, 2x optical-quality telephoto framing, and 48MP macro photography |
| Apple’s video playback estimate | Up to 26 hours | Up to 30 hours |
| Connector | USB-C; USB 2 | USB-C; USB 2 up to 480 Mb/s |
| Base storage at U.S. launch | 128GB | 256GB |
| U.S. launch starting price | $899 in 2023 | $799 in 2025 |
Specifications are from Apple’s iPhone comparison page and iPhone 17 technical specifications. Launch prices and base storage are from Apple’s 2023 iPhone 15 announcement and 2025 iPhone 17 announcement.
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How much cheaper was the iPhone 17 at launch?
In the United States, the iPhone 15 Plus started at $899 for 128GB when it launched in 2023. The iPhone 17 started at $799 for 256GB in 2025. Subtracting the two Apple-announced starting prices, the iPhone 17 launched $100 lower while offering twice the base storage.
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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesThis is a comparison of launch configurations and prices, not a storage-matched or current-price comparison. Those figures do not establish what either phone costs now. A current comparison should use the same country, storage capacity, condition, and carrier or unlocked status; the 15 Plus may be available as used, refurbished, or remaining new stock. Apple’s current unlocked checkout price and the present value of 15 Plus stock are not established here.
#1 Best Overall
- This phone is unlocked and compatible with any carrier of choice on GSM and CDMA networks (e.g. AT&T, T-Mobile, Sprint, Verizon, US Cellular, Cricket, Metro, Tracfone, Mint Mobile, etc.).
- Please check with your carrier to verify compatibility.
- When you receive the phone, insert a SIM card from a compatible carrier. Then, turn it on, connect to Wi-Fi, and follow the on screen prompts to activate service.
- The device does not come with headphones or a SIM card. It does include a generic (Mfi certified) charger and charging cable.
- Tested for battery health and guaranteed to have a minimum battery capacity of 80%.
What the screen difference means
Pick the iPhone 15 Plus for a bigger display
Its 6.7-inch display gives the 15 Plus a clear size advantage for readers who prefer more screen area. The trade-off is choosing an older model rather than the iPhone 17’s listed display features.
Pick the iPhone 17 for smoother scrolling and Always-On
Apple lists ProMotion up to 120Hz and an Always-On display for the iPhone 17. The 17 is physically smaller at 6.3 inches, so it suits someone who wants those features in a more compact screen size. Apple’s cited 15 Plus comparison excerpt does not list an equivalent refresh-rate or always-on specification; that alone should not be treated as proof that a feature is absent.
Rank #2
- This phone is unlocked and compatible with any carrier of choice on GSM and CDMA networks (e.g. AT&T, T-Mobile, Sprint, Verizon, US Cellular, Cricket, Metro, Tracfone, Mint Mobile, etc.).
- Please check with your carrier to verify compatibility.
- When you receive the phone, insert a SIM card from a compatible carrier. Then, turn it on, connect to Wi-Fi, and follow the on screen prompts to activate service.
- The device does not come with headphones or a SIM card. It does include a generic (Mfi certified) charger and charging cable.
Camera differences: published features, not a photo-quality verdict
The iPhone 15 Plus has a dual-camera system with a 48MP Main camera and an Ultra Wide camera. Apple describes the iPhone 17 as a 48MP Dual Fusion system, with a 48MP Main and 48MP Ultra Wide, 2x optical-quality telephoto framing, and 48MP macro photography.
Those specifications show that Apple lists more specific camera capabilities for the 17, but they do not establish how much better its photos look in everyday use. There is no independent side-by-side photo test behind this comparison, so choose based on the listed features you expect to use rather than an unverified claim of image superiority.
Rank #3
- This phone is unlocked and compatible with any carrier of choice on GSM and CDMA networks (e.g. AT&T, T-Mobile, Sprint, Verizon, US Cellular, Cricket, Metro, Tracfone, Mint Mobile, etc.).
- Please check with your carrier to verify compatibility.
- When you receive the phone, insert a SIM card from a compatible carrier. Then, turn it on, connect to Wi-Fi, and follow the on screen prompts to activate service.
- The device does not come with headphones or a SIM card. It does include a generic (Mfi certified) charger and charging cable.
- Tested for battery health and guaranteed to have a minimum battery capacity of 80%.
Chip and battery: what the numbers can and cannot tell you
The 15 Plus uses Apple’s A16 Bionic chip and the 17 uses A19. The newer chip generation is on the iPhone 17, but the chip names alone do not quantify real-world speed or prove how much faster one phone feels.
Apple estimates up to 26 hours of video playback for iPhone 15 Plus and up to 30 hours for iPhone 17. That is a four-hour difference in Apple’s stated maximum playback figures, not a promise of everyday battery life; actual use varies.
Rank #4
- This phone is unlocked and compatible with any carrier of choice on GSM and CDMA networks (e.g. AT&T, T-Mobile, Sprint, Verizon, US Cellular, Cricket, Metro, Tracfone, Mint Mobile, etc.).
- Please check with your carrier to verify compatibility.
- When you receive the phone, insert a SIM card from a compatible carrier. Then, turn it on, connect to Wi-Fi, and follow the on screen prompts to activate service.
- The device does not come with headphones or a SIM card. It does include a generic (Mfi certified) charger and charging cable.
- Tested for battery health and guaranteed to have a minimum battery capacity of 80%.
USB-C is common to both, but check transfer speed
Both phones have a USB-C connector, and Apple lists USB 2 for each. The iPhone 17 specification page states USB 2 speeds up to 480 Mb/s. USB-C describes the connector shape; it does not by itself mean high-speed data transfer.
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Choose iPhone 15 Plus if screen size matters most
- You specifically want a 6.7-inch display.
- You can find a 15 Plus at a price and condition that make sense compared with the 17.
- You are comfortable assessing whether a used, refurbished, or remaining new-stock listing meets your needs.
Choose iPhone 17 if you want newer listed features and more base storage
- You prefer a 6.3-inch phone with ProMotion up to 120Hz and Always-On display.
- You want the newer A19 generation and the camera features Apple lists, including 48MP Ultra Wide and macro photography.
- You value 256GB of base storage; at U.S. launch, the 17 offered that capacity for $100 less than the 15 Plus’s 128GB launch configuration.
Before buying either today, compare live listings using the same storage, condition, market, and carrier status. The launch-price difference is useful context, but it cannot tell you which current listing is the better deal.
Quick Recap
Best Value
- This phone is unlocked and compatible with any carrier of choice on GSM and CDMA networks (e.g. AT&T, T-Mobile, Sprint, Verizon, US Cellular, Cricket, Metro, Tracfone, Mint Mobile, etc.).
- Please check with your carrier to verify compatibility.
- When you receive the phone, insert a SIM card from a compatible carrier. Then, turn it on, connect to Wi-Fi, and follow the on screen prompts to activate service.
- The device does not come with headphones or a SIM card. It does include a generic (Mfi certified) charger and charging cable.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
