For hands-off iPhone updates, turn on Automatically Install at Settings > General > Software Update > Automatic Updates. Apple says installation happens overnight when the iPhone is charging and connected to Wi-Fi, and that it notifies you before installing. If you want to choose the installation time yourself, turn off that option and use Automatically Download instead.
How to turn on automatic iOS updates
- Open Settings.
- Tap General > Software Update > Automatic Updates.
- Choose Automatically Install for overnight download and installation. To download updates but install them yourself, turn off Automatically Install and enable Automatically Download. Apple’s current iOS 26 instructions describe these choices at Update iOS on iPhone and in the iPhone User Guide.
Apple describes automatic installation as an overnight process while the iPhone is charging and connected to Wi-Fi; it does not promise an exact clock time. The current instructions give Automatically Download similar general conditions, but leave installation for you to initiate. Labels and available options may vary by iOS version, so use the Software Update screen on your iPhone if its interface differs.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
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Apple iPhone 14, 128GB, Midnight - Unlocked (Renewed) | $300.00 | Buy on Amazon |
| 2 |
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Apple iPhone 16, 128GB, Pink - Unlocked (Renewed) | $584.00 | Buy on Amazon |
| 3 |
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Apple iPhone 15, 128GB, Black - Unlocked (Renewed) | $409.00 | Buy on Amazon |
| 4 |
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Apple iPhone 13, 128GB, Midnight - Unlocked (Renewed) | $262.00 | Buy on Amazon |
| 5 |
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Apple iPhone 16e, 128GB, Black - Unlocked (Renewed) | $388.35 | Buy on Amazon |
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Should you install automatically or download first?
| Choice | What happens | Best fit |
|---|---|---|
| Automatically Install | iPhone downloads and installs overnight while charging and connected to Wi-Fi; Apple says it notifies you before installation. | You want routine updates handled with minimal effort and can leave the phone charging on Wi-Fi overnight. |
| Automatically Download | The update downloads, but you choose when to install it. | You want to review the version and update details, or select a convenient time when you can be without the phone. |
| Manual check | At Settings > General > Software Update, review the installed version and whether an update is available. | You prefer to check for updates yourself. Apple also documents updating through a connected Mac or Windows computer when appropriate. |
Apple’s cited guidance does not set a universal waiting period after an update is released. Automatic installation is the lower-effort choice; downloading without installing gives you more control over timing. If Apple identifies a security update as important, the available guidance does not support recommending an arbitrary delay.
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System Files
System Files is a separate automatic control for updates that can improve iPhone features without changing the iOS version. In Settings > General > Software Update > Automatic Updates, you can turn off Automatically Install for iOS Updates and enable Automatically Install for System Files. This lets System Files install automatically without enabling automatic installation of full iOS updates. See Apple’s iPhone User Guide.
#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.
- The device does not come with headphones or a SIM card. It does include a generic (Mfi certified) charging cable.
- Tested for battery health and guaranteed to have a minimum battery capacity of 80%.
Background Security Improvements
Apple’s iOS 26 guide documents these as a separate control for additional protection between software updates. Go to Settings > Privacy & Security > Background Security Improvements and turn on Automatically Install. Apple says that, in rare cases involving compatibility issues, an improvement may be temporarily removed and included in a future software update. Enabling automatic iOS installation does not necessarily enable either System Files or Background Security Improvements; configure each control separately. See Apple’s About Background Security Improvements.
Back up and review the update before installation
Apple advises backing up your iPhone before updating. Its iPhone user guide says, “When you update to the latest version of iOS, your data and settings remain unchanged.” Treat that as guidance about the expected update, not a guarantee against every possible problem; keeping a backup gives you a recovery option. On the Software Update screen, review the version number and update details before installing. Apple’s instructions are in Update iOS on iPhone and the iPhone User Guide.
Rank #2
- 6.1" Super Retina XDR OLED, HDR10, Dolby Vision, 1000nits (typ), 2000nits (HBM), 2556x1179px at 460ppi, 3561mAh Battery
- 128GB 8GB RAM, Apple A18 (3nm), Hexa-core (2x4.04 GHz + 4x2.20 GHz), Apple GPU 5-core, 16‑core Neural Engine
- Rear camera: 48MP, f/1.6, wide + 12MP, f/2.2, ultrawide, Front Camera: 12MP, f/1.9, wide, iOS 18, upgradable to iOS 18.5
- 4G LTE: 1/2/3/4/5/7/8/12/13/14/17/18/19/20/25/26/28/29/30/32/34/38/39/40/41/42/48/53/66/71, 5G: n1/2/3/5/7/8/12/14/20/25/26/28/29/30/38/40/41/48/53/66/70/71/75/76/77/78/79 - Dual eSIM
- Unlocked for freedom to choose your carrier. Compatible with both GSM & CDMA networks. The phone is unlocked to work with all GSM Carriers & CDMA Carriers Including AT&T, T-Mobile, Verizon, Sprint., Etc.
Apple recommends keeping device software current for security and privacy updates. Its security guide describes wireless delivery of updates and Apple’s signed-code and authorization process; those safeguards do not make every update outcome infallible. See Apple Platform Security.
If automatic updates are unavailable on a work iPhone
An organization can manage update behavior on supervised Apple devices, defer updates, or require a specific update by a deadline. If an iPhone is managed for work or school, its settings may therefore differ from a personal device. Contact the organization’s administrator if an update control is unavailable or a deadline appears. Apple documents these options in its software update management guidance.
Quick Recap
Best Value
- 6.1" Super Retina XDR OLED, HDR10, 800 nits (HBM), 1200 nits (peak), 2532x1170px at 460ppi, 4005mAh Battery
- 8GB RAM, Apple A18 6-core CPU (2 performance + 4 efficiency cores), Apple GPU 4-core, 16‑core Neural Engine
- Rear camera: 48MP, f/1.6, wide, Front Camera: 12MP, f/1.9, wide, iOS 18.3.1, upgradable to iOS 18.5
- Connectivity: Global 4G LTE, Sub-6 GHz 5G, LTE, Wi-Fi 6, Bluetooth 5.3, NFC, USB-C, Wireless Charging (7.5W). (does not have mmWave 5G or MagSafe or physical SIM card) - Dual eSIM Only
- Unlocked for freedom to choose your carrier. Compatible with both GSM & CDMA networks. The phone is unlocked to work with all GSM Carriers & CDMA Carriers Including AT&T, T-Mobile, Verizon, Straight Talk., Etc.
Rank #4
- This pre-owned product is not Apple certified, but has been professionally inspected, tested and cleaned by Amazon-qualified suppliers.
- There will be no visible cosmetic imperfections when held at an arm’s length.
- This product is eligible for a replacement or refund within 90 days of receipt if you are not satisfied.
- Product may come in generic Box.
Rank #3
- 6.1inch Super Retina XDR display. Aluminum with color-infused glass back. Ring/Silent switch
- Dynamic Island. A magical way to interact with iPhone. A16 Bionic chip with 5-core GPU
- Advanced dual-camera system. 48MP Main | Ultra Wide. Super-high-resolution photos (24MP and 48MP). Next-generation portraits with Focus and Depth Control. 4X optical zoom range
- Emergency SOS via satellite. Crash Detection. Roadside Assistance via satellite
- Up to 26 hours video playback. USB C, Supports USB 2. Face ID
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.
