iPhone 12 Pro vs OnePlus 9 Pro: Which Flagship Reigns Supreme?

The iPhone 12 Pro and OnePlus 9 Pro represent distinct philosophies in the flagship smartphone space. Apple offers a tightly integrated ecosystem and refined software, while OnePlus prioritizes raw performance and rapid charging. With the iPhone 12 Pro now available at lower prices, the competition is fiercer than ever. This comparison dives deep into the specifics to determine which phone delivers the best experience.
Phones Images

🏆 Quick Verdict

For most users, the OnePlus 9 Pro offers a compelling package with faster charging and slightly better battery endurance. However, the iPhone 12 Pro’s seamless software experience and strong resale value make it a worthwhile choice for those deeply invested in the Apple ecosystem.

PHONES
Phone Names Apple iPhone 12 Pro OnePlus 9 Pro
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G bands1, 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, 46, 48, 66, 71 - A23411, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - EU
5G bands1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79, 260, 261 Sub6/mmWave - A23411, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA - EU
SpeedHSPA, LTE, 5G, EV-DO Rev.A 3.1 MbpsHSPA 42.2/5.76 Mbps, LTE Cat20 2000/200 Mbps, 5G
TechnologyGSM / CDMA / HSPA / EVDO / LTE / 5GGSM / CDMA / HSPA / LTE / 5G
 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79 Sub6 - A24061, 3, 28, 41, 78, 79 SA/NSA - CN
Launch
Announced2020, October 132021, March 23
StatusAvailable. Released 2020, October 23Available. Released 2021, March 30
Body
BuildGlass front, glass back, stainless steel frameGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Dimensions146.7 x 71.5 x 7.4 mm (5.78 x 2.81 x 0.29 in)163.2 x 73.6 x 8.7 mm (6.43 x 2.90 x 0.34 in)
SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM (China)· Nano-SIM· Nano-SIM + Nano-SIM
Weight189 g (6.67 oz)197 g (6.95 oz)
 IP68 dust/water resistant (up to 6m for 30 min) Apple Pay (Visa, MasterCard, AMEX certified)IP68 dust/water resistant (up to 1.5m for 30 min)
Display
ProtectionCeramic Shield glassCorning Gorilla Glass 5
Resolution1170 x 2532 pixels, 19.5:9 ratio (~460 ppi density)1440 x 3216 pixels, 20:9 ratio (~525 ppi density)
Size6.1 inches, 90.2 cm2 (~86.0% screen-to-body ratio)6.7 inches, 108.4 cm2 (~90.3% screen-to-body ratio)
TypeSuper Retina XDR OLED, HDR10, Dolby Vision, 800 nits (HBM), 1200 nits (peak)LTPO Fluid2 AMOLED, 1B colors, 120Hz, HDR10+, 1300 nits (peak)
 -Always-on display
Platform
CPUHexa-core (2x3.1 GHz Firestorm + 4x1.8 GHz Icestorm)Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55
ChipsetApple A14 Bionic (5 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm)
GPUApple GPU (4-core graphics)Adreno 660
OSiOS 14.1, upgradable to iOS 26.1Android 11, upgradable to Android 14, OxygenOS 14
Memory
Card slotNoNo
Internal128GB 6GB RAM, 256GB 6GB RAM, 512GB 6GB RAM128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
 NVMeUFS 3.1
Main Camera
FeaturesDual-LED dual-tone flash, HDR (photo/panorama)Laser AF, color spectrum sensor, Hasselblad Color Calibration, dual-LED flash, HDR, panorama
Quad-48 MP, f/1.8, 23mm (wide), 1/1.43", 1.12µm, multi-directional PDAF, OIS 8 MP, f/2.4, 77mm (telephoto), 1.0µm, PDAF, OIS, 3.3x optical zoom 50 MP, f/2.2, 14mm (ultrawide), 1/1.56", 1.0µm, AF 2 MP, f/2.4, (monochrome)
Single-16 MP, f/2.4, (wide), 1/3.06", 1.0µm
Triple12 MP, f/1.6, 26mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS 12 MP, f/2.0, 52mm (telephoto), 1/3.4", 1.0µm, PDAF, OIS, 2x optical zoom 12 MP, f/2.4, 13mm, 120˚ (ultrawide), 1/3.4", 1.0µm TOF 3D LiDAR scanner (depth)-
Video4K@24/25/30/60fps, 1080p@25/30/60/120/240fps, 10‑bit HDR, Dolby Vision HDR (up to 60fps), stereo sound rec.8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS
Selfie camera
FeaturesHDRHDR
Single12 MP, f/2.2, 23mm (wide), 1/3.6", 1.0µm SL 3D, (depth/biometrics sensor)16 MP, f/2.4, (wide), 1/3.06", 1.0µm
Video4K@24/25/30/60fps, 1080p@25/30/60/120fps, gyro-EIS1080p@30fps, gyro-EIS
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 -24-bit/192kHz audio
Comms
Bluetooth5.0, A2DP, LE5.2, A2DP, LE, aptX HD
NFCYesYes
PositioningGPS, GLONASS, GALILEO, QZSSGPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)
RadioNoNo
USBLightning, USB 2.0USB Type-C 3.1, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, hotspotWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNA
Features
SensorsFace ID, accelerometer, gyro, proximity, compass, barometerFingerprint (under display, optical), accelerometer, gyro, proximity, compass
 Ultra Wideband (UWB) support-
Battery
ChargingWired, PD2.0, 50% in 30 min 15W wireless (MagSafe) 15W wireless (Qi2) - requires iOS 17.4 update65W wired, PD, 100% in 29 min 50W wireless, 100% in 43 min 5W reverse wireless
TypeLi-Ion 2815 mAh (10.78 Wh)Li-Po 4500 mAh
Misc
ColorsSilver, Graphite, Gold, Pacific BlueMorning Mist, Forest Green, Stellar Black
ModelsA2407, A2341, A2406, A2408, iPhone13,3LE2121, LE2125, LE2123, LE2120, LE2127
Price$ 277.86 / C$ 419.75 / £ 250.00 / € 299.99€ 246.17 / $ 264.95 / £ 287.00
SAR EU0.99 W/kg (head)     0.99 W/kg (body)-
Pricing
128GB 6GB RAM$ 725.05-
256GB 6GB RAM$ 575.00-
512GB 6GB RAM$ 799.50-
RENEWED$ 499.00-
Tests
Battery life Endurance rating 81h Endurance rating 86h
Camera Photo / Video Photo / Video
Display Contrast ratio: Infinite (nominal)-
Loudspeaker -24.2 LUFS (Very good) -24.1 LUFS (Very good)
Performance AnTuTu: 596244 (v8) GeekBench: 4056 (v5.1) GFXBench: 58fps (ES 3.1 onscreen)-

Apple iPhone 12 Pro

  • Seamless iOS ecosystem integration
  • Excellent video recording capabilities
  • Strong resale value

  • Slower charging speeds
  • Less customizable software
  • Lower peak display brightness

OnePlus 9 Pro

  • Blazing-fast 65W wired charging
  • Brighter display for outdoor visibility
  • More customizable Android experience

  • Shorter software support lifecycle
  • Less refined software experience
  • Potential for software bloat

Display Comparison

The OnePlus 9 Pro boasts a significantly brighter display, peaking at 859 nits, compared to the iPhone 12 Pro’s ‘infinite’ (nominal) contrast ratio, which doesn’t translate to peak brightness. While the iPhone 12 Pro’s OLED panel is excellent, the OnePlus 9 Pro’s higher brightness is advantageous in direct sunlight. Both utilize OLED technology, delivering vibrant colors, but the OnePlus 9 Pro’s higher peak brightness provides a more visible experience outdoors. The iPhone 12 Pro benefits from Apple’s color calibration, known for its accuracy, but the OnePlus 9 Pro isn’t far behind. Both lack high refresh rate displays, a notable omission for flagship devices in 2021.

Camera Comparison

Both phones offer versatile camera systems, but their approaches differ. The iPhone 12 Pro excels in video recording, leveraging Apple’s computational photography expertise. The OnePlus 9 Pro, developed in partnership with Hasselblad, focuses on color science and natural-looking images. While both capture excellent photos, the OnePlus 9 Pro’s larger main sensor (spec not provided, but generally larger than iPhone 12 Pro) allows for better low-light performance. Both phones offer optical image stabilization (OIS), but the OnePlus 9 Pro’s implementation may be more aggressive. The iPhone 12 Pro’s strength lies in its consistent image quality across all lenses and its superior video capabilities.

Performance

The Apple A14 Bionic (5nm) and Qualcomm Snapdragon 888 (5nm) are both powerful chipsets, but their architectures differ. The A14’s hexa-core configuration (2x3.1 GHz Firestorm + 4x1.8 GHz Icestorm) emphasizes single-core performance, crucial for responsive app launches and smooth scrolling. The Snapdragon 888’s octa-core setup (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) offers strong multi-core performance, beneficial for demanding tasks like video editing. While benchmarks often favor the A14 in single-core tests, the Snapdragon 888’s Adreno 660 GPU provides excellent graphics performance. Both phones feature 6GB of RAM, but iOS’s memory management is generally more efficient, potentially mitigating the RAM difference.

Battery Life

The OnePlus 9 Pro edges out the iPhone 12 Pro in battery endurance, achieving an 86-hour rating versus the iPhone 12 Pro’s 81 hours. However, the real differentiator is charging speed. The OnePlus 9 Pro’s 65W wired charging replenishes the battery to 100% in just 29 minutes, a significant advantage over the iPhone 12 Pro’s 30-minute 50% charge with PD2.0. The OnePlus 9 Pro also supports 50W wireless charging (100% in 43 minutes) and 5W reverse wireless charging, features absent on the iPhone 12 Pro, which relies on 15W MagSafe and Qi2 (with iOS 17.4) wireless charging.

Buying Guide

Buy the Apple iPhone 12 Pro if you prioritize a polished, user-friendly software experience, long-term software support, and integration with other Apple devices. Buy the OnePlus 9 Pro if you value blazing-fast charging, a brighter display, and a more customizable Android experience, and are comfortable with a potentially shorter software support lifecycle.

Frequently Asked Questions

❓ Does the Snapdragon 888 in the OnePlus 9 Pro suffer from overheating issues during prolonged gaming sessions?
The Snapdragon 888 is known to generate more heat than some of its predecessors. While the OnePlus 9 Pro incorporates cooling solutions, extended gaming at maximum settings can lead to thermal throttling, reducing sustained performance. However, the throttling isn't severe enough to render the phone unusable, and most users won't encounter issues during typical usage.
❓ How does the iPhone 12 Pro's MagSafe ecosystem compare to the OnePlus 9 Pro's wireless charging capabilities?
MagSafe offers a more integrated wireless charging experience with magnetic alignment and accessory support. While the OnePlus 9 Pro supports faster wireless charging (50W vs 15W), it lacks the magnetic attachment and ecosystem of accessories offered by MagSafe. The iPhone 12 Pro also requires iOS 17.4 for Qi2 compatibility, which is a newer standard.
❓ Is the difference in battery endurance between the two phones noticeable in everyday use?
The 5-hour difference in endurance ratings (86h vs 81h) is subtle but can be noticeable for heavy users. The OnePlus 9 Pro’s faster charging mitigates any concerns about battery life, allowing for quick top-ups throughout the day. The iPhone 12 Pro’s optimized power management helps extend battery life, but it requires more planning around charging.