Buying an older flagship phone can feel like a smart way to save money, but the math changes drastically once software support ends. If you're eyeing a second-hand unit, the short answer is that the iPhone X is no longer a practical daily driver for most people. Released back in 2017 as Apple's tenth-anniversary statement piece, it revolutionized smartphone design with its edge-to-edge OLED screen and Face ID. Today, however, hardware fatigue, dropped software updates, and modern app requirements make it a risky purchase.
Navigating the market for aging tech means looking past the initial low price tag. While you can find units online for under $150, the hidden costs—such as degraded batteries, lack of security patches, and incompatibility with essential apps—add up quickly. Let's break down how the hardware holds up, where it fails, and whether any niche use cases still justify picking one up.
Hardware Design and Display Quality
The primary reason people still look twice at this device is its build quality. Apple constructed the chassis with surgical-grade stainless steel and durable glass front and back panels. Even years later, the phone feels substantial and premium in the hand—often outclassing modern mid-range plastic devices.
The 5.8-inch Super Retina OLED display was groundbreaking at launch. With a resolution of 2436 by 1125 and support for HDR, media consumption still looks sharp, vibrant, and rich in contrast. Blacks are deep, and peak brightness is generally adequate for everyday indoor use.
Yet, physical wear and tear on second-hand units can severely impact this experience. Common issues include microscopic scratches on the stainless steel band, OLED burn-in from static UI elements, and degraded TrueDepth sensor arrays that make Face ID sluggish or unresponsive. If you find a unit, check the display panel closely for ghost imaging or discoloration.
Performance and Software Limitations
Under the hood lies the A11 Bionic chip paired with 3GB of RAM and a dedicated Neural Engine. For basic tasks like messaging, web browsing, and checking email, the processor still handles daily navigation smoothly. Apps open without excessive stutter, and basic multitasking works fine.
The fatal flaw lies in software support. Apple officially dropped iOS update support for this generation, meaning it maxes out at iOS 16. This creates a cascading series of compatibility problems:
- App Store Incompatibility: A growing number of third-party apps—particularly banking, fintech, and modern social media applications—now require iOS 17 or later to install or receive updates.
- Security Vulnerabilities: Without ongoing iOS security patches, your personal data, banking credentials, and browsing sessions are exposed to unpatched system-level exploits.
- Thermal Throttling: Pushing the aging A11 processor with modern web applications or lightweight mobile games causes the chassis to heat up quickly, leading to noticeable performance drops and sudden battery drain.
Camera Capabilities in the Modern Era
The dual 12-megapixel rear camera system—featuring a wide-angle lens and a telephoto lens with optical image stabilization—was elite in 2017. In bright daylight, it still captures natural colors, balanced exposures, and decent portrait shots.
By modern standards, however, the sensor shows its age. It lacks computational photography staples found on newer iPhones, such as Deep Fusion, Smart HDR 4, and a dedicated Night Mode. Low-light performance suffers heavily from noise, blown-out highlights from streetlights, and smudged details. If mobile photography is a priority for you, even a budget Android phone or an iPhone 11 delivers drastically cleaner results in dim environments.
Battery Health and Thermal Realities
Battery degradation is the silent killer of used smartphones. Lithium-ion batteries lose maximum capacity over hundreds of charge cycles. Most units on the secondary market have either degraded significantly or already undergone a third-party battery replacement of varying quality.
A degraded battery causes the power management system to throttle processor speed unexpectedly to prevent sudden shutdowns. If you buy a unit with battery health dipping below 80 percent, you'll likely need to charge it multiple times a day or pay for a replacement, which eats into any upfront savings.
Alternatives Worth Considering Instead
If you are shopping on a tight budget, spending your money on an unsupported flagship rarely makes financial sense. Consider these alternatives instead:
- iPhone 11: This serves as the absolute floor for long-term usability. It supports newer iOS versions, features the faster A13 Bionic chip, includes an ultra-wide camera lens, and offers noticeably better battery life.
- iPhone 12: Moving up to this tier gets you flat-edge industrial design, an OLED display matching the older model's visual pop, full 5G connectivity, and MagSafe accessory support.
- Budget Android Alternatives: Brands like Motorola and Samsung offer brand-new mid-range devices with modern software support, multi-year security guarantees, and fresh batteries for the same price as a refurbished old Apple flagship.
You can check certified refurbishment platforms like RefurbMe to compare prices across trusted vendors if you still want to explore older Apple inventory safely. For official device specifications and support lifecycles, reference the Apple Support database.
Frequently Asked Questions
Can I still use banking apps on this phone?
It depends on your financial institution. Many major banks drop support for devices running outdated operating systems once security risks increase. While basic web banking through a browser might work, dedicated security apps often enforce strict iOS version floors.
How long will a replacement battery last?
If you install a fresh battery, you can restore peak performance and daily screen-on time to acceptable levels. However, hardware throttling due to old processors and software incompatibility will still limit how long the device remains functional overall.
Is it safe to buy a refurbished unit online?
Buying refurbished can be safe if you purchase from reputable platforms that offer clear grading systems, return windows, and hardware warranties (such as Amazon Renewed or Back Market). Always verify the battery health percentage before completing the purchase.
Does it support wireless charging?
Yes, the glass back panel enables Qi-standard wireless charging, though it lacks the magnetic alignment and faster charging speeds of MagSafe introduced in later generations.
