iPhone X Specifications in 2026: Complete Overview & Details
After spending months analyzing technical specifications and real-world performance data, I’ve compiled this comprehensive guide to iPhone X specifications.
The iPhone X is Apple’s 10th anniversary smartphone released in 2017, featuring a 5.8-inch Super Retina OLED display, A11 Bionic processor, dual-camera system, and Face ID facial recognition technology.
This device marked a fundamental shift in iPhone design philosophy. The removal of the home button and introduction of Face ID changed how millions interact with their phones daily.
Whether you’re considering a used iPhone X purchase or need technical details for comparison, I’ll cover every specification that matters.
iPhone X Key Specifications at a Glance
The iPhone X combines premium hardware with innovative features that set new standards for smartphone design.
⚠️ Important: iPhone X was discontinued in 2018 but continues to receive iOS updates through iOS 16.7.10 as of 2026.
| Specification | Details |
|---|---|
| Display | 5.8″ Super Retina OLED, 1125×2436 pixels, 458 ppi |
| Processor | Apple A11 Bionic (6-core CPU, 3-core GPU) |
| RAM | 3GB LPDDR4X |
| Storage | 64GB or 256GB |
| Rear Cameras | Dual 12MP (wide + telephoto) |
| Front Camera | 7MP TrueDepth with Face ID |
| Battery | 2716 mAh, Qi wireless charging |
| Dimensions | 143.6 × 70.9 × 7.7 mm |
| Weight | 174 grams |
| Water Resistance | IP67 (1 meter for 30 minutes) |
These specifications positioned the iPhone X as Apple’s premium flagship. The combination of OLED display technology and Face ID represented Apple’s biggest design change since the original iPhone.
The A11 Bionic processor still delivers solid performance in 2026. I’ve tested apps like video editing software and demanding games, and they run smoothly.
Display and Screen Technology
The iPhone X display revolutionized Apple’s approach to screen technology with the first OLED panel in an iPhone.
Super Retina OLED Technology
The 5.8-inch OLED display offers 1125×2436 resolution at 458 pixels per inch. This translates to incredibly sharp text and vivid colors.
The display supports HDR10 and Dolby Vision content. When watching compatible videos, the difference in dynamic range is immediately noticeable.
True Tone technology adjusts white balance based on ambient lighting. After using it for weeks, going back to fixed white balance feels unnatural.
⏰ PWM Warning: The OLED display uses PWM (Pulse Width Modulation) at 240Hz for brightness control, which causes eye strain or headaches in 5-10% of users.
Display Features and Capabilities
- 3D Touch: Pressure-sensitive touch for quick actions and previews
- Wide Color Display (P3): 25% more colors than standard sRGB
- 1,000,000:1 Contrast Ratio: True blacks with infinite contrast
- 625 cd/m² Max Brightness: Readable in direct sunlight
The notch houses the TrueDepth camera system. While controversial at launch, it enables Face ID’s secure authentication.
Screen burn-in concerns proved largely unfounded. After years of use, most units show no permanent image retention.
Performance and Processing Power (2026)
The A11 Bionic chip delivers performance that remains competitive even years after release.
A11 Bionic Architecture
Apple’s A11 Bionic features a 6-core CPU with 2 performance cores and 4 efficiency cores. The performance cores run 25% faster than the A10 Fusion.
The 3-core GPU designed by Apple delivers 30% faster graphics than the previous generation. Games and AR applications benefit significantly from this improvement.
The Neural Engine is Apple’s first dedicated AI processor. It performs up to 600 billion operations per second for Face ID and machine learning tasks.
Benchmark Performance
| Benchmark | Score | Comparison |
|---|---|---|
| GeekBench 5 Single-Core | 920 | Similar to iPhone SE 2020 |
| GeekBench 5 Multi-Core | 2350 | Outperforms many 2026 mid-range phones |
| AnTuTu v9 | ~350,000 | Solid for daily tasks in 2026 |
The 3GB of RAM manages multitasking adequately. Heavy users might notice app reloads, but typical usage remains smooth.
Storage options of 64GB and 256GB use NVMe technology. Read speeds reach 1200 MB/s, ensuring quick app launches and file transfers.
Camera System and Photography Features
The dual-camera system introduced new photography capabilities that became standard in subsequent iPhones.
Dual Rear Camera Specifications
The wide-angle camera features a 12MP sensor with f/1.8 aperture and optical image stabilization. Low-light performance improved significantly over the iPhone 7.
The telephoto camera offers 12MP resolution with f/2.4 aperture and optical image stabilization. This enables 2x optical zoom and up to 10x digital zoom.
- Portrait Mode: Creates depth-of-field effects with adjustable lighting
- Portrait Lighting: Studio-quality lighting effects in real-time
- Optical Zoom: 2x zoom without quality loss
Video Recording Capabilities
- 4K Video: 24, 30, or 60 fps recording
- 1080p HD: 30, 60, 120, or 240 fps for slow motion
- Optical Image Stabilization: Smooth handheld footage
- Time-lapse: With stabilization for professional results
TrueDepth Front Camera System
The 7MP TrueDepth camera enables Face ID and advanced selfie features. Portrait mode works on the front camera, a first for iPhone.
Face ID uses infrared technology to create a 3D map of your face. The system works in complete darkness and adapts to changes in appearance.
Animoji and Memoji leverage the TrueDepth system’s facial tracking. These features track 50+ muscle movements for realistic animations.
Connectivity and Network Features in 2026
The iPhone X supports comprehensive connectivity options for global compatibility.
Cellular Network Support
The device supports LTE Advanced with speeds up to 450 Mbps. It’s compatible with over 30 LTE bands for worldwide roaming.
5G Support: The iPhone X does NOT support 5G networks. It’s limited to 4G LTE connectivity.
GSM, CDMA, HSPA, and LTE technologies ensure compatibility with virtually all carriers globally. Both physical nano-SIM and eSIM (in later models) are supported.
Wireless Connectivity Features
| Technology | Specification | Use Case |
|---|---|---|
| Wi-Fi | 802.11ac with MIMO | Fast home/office connectivity |
| Bluetooth | 5.0 | Audio devices, accessories |
| NFC | With reader mode | Apple Pay transactions |
| Lightning | USB 2.0 speeds | Charging and data transfer |
The Lightning port remains the primary physical connection. USB-C adoption wouldn’t come to iPhone until years later.
GPS with GLONASS, Galileo, and QZSS provides accurate location services. Navigation accuracy typically falls within 5 meters in good conditions.
Battery Life and Durability Features
Battery performance and durability remain crucial considerations for iPhone X users in 2026.
Battery Specifications and Performance
The 2716 mAh lithium-ion battery provides up to 21 hours of talk time. Real-world usage typically yields 10-12 hours of screen time.
Wireless charging support includes Qi standard compatibility up to 7.5W. Fast charging reaches 50% in 30 minutes with appropriate adapters.
After years of use, battery health typically degrades to 80-85%. iOS battery management features help maintain performance even with degraded batteries.
✅ Pro Tip: Replace the battery when health drops below 80% to restore original performance and battery life.
Durability and Water Resistance
IP67 certification means protection against dust and water immersion up to 1 meter for 30 minutes. However, real-world water damage still occurs.
The glass back enables wireless charging but increases fragility. Using a case significantly reduces damage risk from drops.
Common durability issues include Face ID failures from humidity exposure and screen sensitivity problems after non-OEM replacements. Original parts maintain the best reliability.
If you need help with customizing your iPhone X experience, check out our guide on how to change AirDrop name on iPhone for better device identification.
Frequently Asked Questions
Does iPhone X support 5G networks?
No, the iPhone X does not support 5G. It’s limited to 4G LTE networks with maximum theoretical speeds of 450 Mbps. 5G support started with the iPhone 12 series.
What iOS versions can iPhone X run?
iPhone X originally shipped with iOS 11 and supports up to iOS 16.7.10. Apple typically provides 5-6 years of iOS updates, so the iPhone X reached end of major iOS support in 2023.
Is iPhone X waterproof?
iPhone X has IP67 water resistance rating, meaning it can withstand immersion in 1 meter of water for 30 minutes. However, it’s water-resistant, not waterproof, and water damage isn’t covered by warranty.
How much RAM does iPhone X have?
The iPhone X has 3GB of RAM (LPDDR4X). While less than many Android phones, iOS optimization ensures smooth performance for most tasks, though heavy multitasking may cause app reloads.
What causes PWM sensitivity with iPhone X display?
The OLED display uses Pulse Width Modulation at 240Hz to control brightness, which causes flickering invisible to most people. About 5-10% of users experience eye strain, headaches, or nausea from this flickering.
Does iPhone X have a headphone jack?
No, iPhone X doesn’t have a 3.5mm headphone jack. Audio output is through the Lightning port or Bluetooth. Apple includes Lightning EarPods and a Lightning to 3.5mm adapter in the box.
What’s the difference between iPhone X storage options?
iPhone X comes in 64GB and 256GB variants. The 64GB model suits light users with cloud storage, while 256GB accommodates heavy photo/video users and large app collections. Storage cannot be expanded after purchase.
iPhone X Legacy and Current Relevance
The iPhone X remains a capable device in 2026 despite being discontinued since 2018.
For current users, the phone handles daily tasks well. Social media, web browsing, and standard apps run smoothly on the A11 Bionic processor.
The lack of 5G support and aging processor make it less suitable for power users. However, the OLED display and Face ID still feel premium.
If you’re considering a used iPhone X, expect to pay $150-400 depending on condition and storage. Factor in potential battery replacement costs of $69-89.
The iPhone X introduced design elements that define modern smartphones. Its influence extends far beyond Apple’s ecosystem, making it a historically significant device worth understanding.