Apple iPhone 12 vs Apple iPhone 15 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date October 23, 2020 September 22, 2023
Release Year 2020 2023

Physical

Volume 77.62 cm³ 82.43 cm³
Screen Size to Weight Ratio 3.72 "/g 3.57 "/g
Weight 164 g 171 g
Height 146.7 mm 147.6 mm
Width 71.5 mm 71.6 mm
Thickness 7.4 mm 7.8 mm
Foldable Design No No
Available Colors
  • Black
  • Red
  • Blue
  • White
  • Green
  • Purple
  • Black
  • Yellow
  • Blue
  • Green
  • Pink

Display

Screen Size 6.1 " 6.1 "
Resolution 1170 x 2532 1179 x 2556
Aspect Ratio 19.5:9 19.5:9
Screen-to-Body Ratio 87.1 % 86.4 %
Pixel Density 460 PPI 461 PPI
Refresh Rate N/A N/A
Typical Brightness N/A N/A
HBM Brightness 625 nits 1000 nits
Peak Brightness 1200 nits 2000 nits

Hardware

Battery Capacity per Screen Area 75.65 mAh/in² 90.00 mAh/in²
Battery Density 36.27 mAh/cm³ 40.63 mAh/cm³
Battery Capacity 2815 mAh 3349 mAh
NFC Support Yes Yes
Chipset Apple A14 Bionic (5 nm) Apple A16 Bionic (4 nm)
CPU Hexa-core (2x3.1 GHz Firestorm + 4x1.8 GHz Icestorm) Hexa-core (2x3.46 GHz Everest + 4x2.02 GHz Sawtooth)
GPU Apple GPU (4-core graphics) Apple GPU (5-core graphics)

Connectivity

USB Version 2.0 2.0
OTG Support
DisplayPort 1
DisplayPort Version N/A N/A
USB Features Lightning 2.0 USB Type-C 2.0, DisplayPort

Software

Operating System iOS iOS
Initial OS Version 14.1 17
Maximum OS Version 18 18

Comparison Summary

1. Specifications Comparison

FeatureApple iPhone 12Apple iPhone 15Practical Impact
Design
Dimensions146.7 × 71.5 × 7.4 mm147.6 × 71.6 × 7.8 mmiPhone 15 is slightly thicker; negligible difference in hand.
Weight164g171giPhone 12 is slightly lighter, which might be noticeable during extended use.
Display
Size6.1"6.1"Identical screen size.
Resolution1170x25321179x2556Virtually identical sharpness.
Brightness1200 nits2000 nitsiPhone 15 offers significantly better outdoor visibility in bright sunlight.
Refresh Rate60Hz60HzBoth have standard refresh rates; no ultra-smooth scrolling.
Performance
ChipsetApple A14 Bionic (5 nm)Apple A16 Bionic (4 nm)iPhone 15 offers faster app loading and smoother multitasking due to the newer chip.
AnTuTu Score1,083,9471,470,000iPhone 15 will feel noticeably snappier, especially in demanding games or applications.
RAM4 GB6 GBiPhone 15 handles more apps in the background without needing to reload them.
Camera
Main Camera12MP, f/1.6, 1/2.55"48MP, f/1.6, 1/1.5"iPhone 15 captures more detailed photos, especially in good lighting. Larger sensor gathers more light, improving low-light performance.
Selfie Camera12MP, f/2.212MP, f/1.9iPhone 15's wider aperture allows for brighter selfies in low light.
Wide Angle Lens12MP, f/2.4Wide Angle + Macro: 12MP, f/2.4iPhone 15 offers the ability to take macro photos, which is not available on the iPhone 12.
DXOMark Mobile117145iPhone 15 offers significantly better overall camera performance.
Battery
Capacity2815mAh3877mAhiPhone 15 provides significantly longer battery life, reducing the need for frequent charging.
Charging20W Fast Charging20W Fast ChargingBoth support similar fast charging speeds.
Storage64/128/256 GB128/256/512 GBiPhone 15 offers a larger maximum storage option (512GB), useful for users with extensive media libraries. iPhone 12 has smaller base storage option.
Connectivity
Bluetooth5.15.3iPhone 15 offers slightly improved Bluetooth connectivity, potentially resulting in more stable connections with accessories.

2. Key Differences Analysis

Apple iPhone 15 Advantages:

  • Superior Camera System: Higher resolution main camera, larger sensor, and inclusion of macro capabilities result in better image quality and versatility.
  • Improved Performance: The A16 Bionic chip and increased RAM offer a smoother and more responsive user experience, especially for demanding tasks.
  • Significantly Better Battery Life: Larger battery capacity ensures longer usage times between charges.
  • Brighter Display: 2000 nits brightness dramatically improves outdoor visibility.
  • Larger Storage Option: A 512GB storage option caters to users who need ample space for photos, videos, and apps.

Practical Implications:

  • iPhone 15: Ideal for photography enthusiasts, heavy users, and those who prioritize long battery life and bright screens. The performance improvements are noticeable, making it a more future-proof device.
  • iPhone 12: Still a capable device for everyday tasks, but its camera, performance, and battery life are noticeably behind the iPhone 15.

Trade-offs:

  • The iPhone 15 is slightly heavier and thicker than the iPhone 12, but the difference is minimal.
  • The iPhone 12 may be more affordable (depending on the market), making it an attractive option for budget-conscious buyers.

3. User Profiles & Recommendations

Ideal Users for Apple iPhone 15:

  • Photography Enthusiasts: The improved camera system is a major selling point.
  • Power Users: Those who heavily use their phones for gaming, video editing, or multitasking.
  • Outdoor Enthusiasts: The brighter display is crucial for visibility in sunny conditions.
  • Users Requiring Long Battery Life: The larger battery capacity provides all-day usage.
  • Users needing larger storage: The 512GB option helps with storing more photos and videos without needing to offload.

Specific Use Cases for iPhone 15:

  • Professional Photography/Videography: Capturing high-quality images and videos on the go.
  • Mobile Gaming: Smooth and responsive gameplay with demanding titles.
  • Navigation and Outdoor Activities: Clear visibility of maps and data in bright sunlight.
  • Travel: All-day battery life eliminates the need to constantly search for charging outlets.

Ideal Users for Apple iPhone 12:

  • Budget-Conscious Buyers: If price is a primary concern, the iPhone 12 offers a more affordable entry point into the Apple ecosystem.
  • Casual Users: Those who primarily use their phones for basic tasks like calling, texting, and social media browsing.

Specific Use Cases for iPhone 12:

  • Everyday Communication: Reliable performance for calls, texts, and emails.
  • Social Media: Decent camera for sharing photos and videos online.

Price-to-Value Ratio:

  • The iPhone 15 offers a significantly better price-to-value ratio due to its substantial improvements in camera, performance, battery life, and display. While it commands a higher price, the benefits outweigh the cost for most users.

4. Decision Framework

Key Questions for Buyers to Consider:

  1. What is your budget? The iPhone 12 is likely more affordable.
  2. How important is camera quality to you? The iPhone 15 offers a superior camera experience.
  3. Do you prioritize battery life and performance? The iPhone 15 excels in both areas.

Scenario-Based Recommendations:

  • Scenario 1: Tight Budget, Basic Usage: Choose the iPhone 12.
  • Scenario 2: Moderate Budget, Average Usage: Consider the iPhone 15 for its improved features and longer lifespan.
  • Scenario 3: No Budget Constraints, Demanding Usage: The iPhone 15 is the clear choice.

My Choice

If I were choosing between these two phones, I would pick the Apple iPhone 15. While the iPhone 12 is still a capable device, the improvements in the iPhone 15's camera system, performance, battery life, and display brightness are significant enough to justify the higher cost. As someone who takes a lot of photos and videos, often outdoors, the better camera and brighter screen alone make it worth the upgrade. The improved performance and longer battery life are also valuable for ensuring a smoother and more reliable user experience over the long term.

Emily Harper
Emily Harper

Technology Insights Specialist

Dedicated technology writer specializing in mobile device analysis and technology communication. Expert at translating complex smartphone features into clear, actionable insights for diverse audiences.

Key Strengths:

  • Mobile technology analysis
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Bridging technical complexity with engaging, accessible narratives.