Oppo A15 vs Samsung Galaxy S23 Ultra - Detailed Phone Comparison

Detailed Comparison

Specification
Oppo A15
Oppo A15
Oppo

General

Launch Date October 27, 2020 February 17, 2023
Release Year 2020 2023

Physical

Volume 97.69 cm³ 113.58 cm³
Screen Size to Weight Ratio 3.73 "/g 2.91 "/g
Weight 175 g 234 g
Height 164 mm 163.4 mm
Width 75.4 mm 78.1 mm
Thickness 7.9 mm 8.9 mm
Foldable Design No No
Available Colors
  • Dynamic Black
  • Mystery Blue
  • Red
  • Green
  • Graphite
  • Phantom Black
  • Lavender
  • Cream
  • Sky Blue
  • Lime
  • BMW M Edition

Display

Screen Size 6.52 " 6.8 "
Resolution 720 x 1600 1440 x 3088
Aspect Ratio 20:9 19.5:9
Screen-to-Body Ratio 83 % 89.5 %
Pixel Density 269 PPI 500 PPI
Refresh Rate N/A 120 Hz
Typical Brightness 480 nits N/A
HBM Brightness N/A 1200 nits
Peak Brightness N/A 1750 nits

Hardware

Battery Capacity per Screen Area 99.51 mAh/in² 108.13 mAh/in²
Battery Density 43.3 mAh/cm³ 44.02 mAh/cm³
Battery Capacity 4230 mAh 5000 mAh
NFC Support No Yes
Chipset Mediatek MT6765 Helio P35 (12 nm) Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm)
CPU Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) Octa-core (1x3.36 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)
GPU PowerVR GE8320 Adreno 740

Connectivity

USB Version 2.0 3.2
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features microUSB 2.0, OTG USB Type-C 3.2, OTG

Software

Operating System Android Android
Initial OS Version 10 13
Maximum OS Version 17

Comparison Summary

1. Specifications Comparison

Here's a detailed comparison of the Oppo A15 and Samsung Galaxy S23 Ultra, focusing on practical implications:

FeatureOppo A15Samsung Galaxy S23 UltraPractical Impact
Design
Dimensions164 × 75.4 × 7.9 mm163.4 × 78.1 × 8.9 mmS23 Ultra is wider and thicker, potentially less comfortable for one-handed use. A15 is slightly taller.
Weight175g234gA15 is significantly lighter, better for prolonged use.
Build Quality (Screen)Corning Gorilla Glass 3Corning Gorilla Glass VictusS23 Ultra offers superior scratch and drop resistance.
Display
Size6.52"6.8"S23 Ultra provides a more immersive viewing experience.
Resolution720x16001440x3088S23 Ultra delivers significantly sharper images and text.
Pixel Density269 PPI500 PPIS23 Ultra's higher pixel density results in a clearer, more detailed display.
TechnologyIPS LCDAMOLEDS23 Ultra offers deeper blacks, better contrast, and more vibrant colors.
Refresh Rate60Hz120HzS23 Ultra provides smoother scrolling and animations.
Brightness0 nits1750 nitsS23 Ultra is much easier to view in bright sunlight. Oppo A15 brightness is missing.
Performance
ChipsetMediatek MT6765 Helio P35 (12 nm)Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm)S23 Ultra offers drastically faster app loading, multitasking, and gaming performance.
AnTuTu Score113,0001,521,862S23 Ultra is significantly more responsive and future-proof.
GPUPowerVR GE8320Adreno 740S23 Ultra provides a much better gaming experience with smoother graphics.
RAM2/3/4 GB8/12 GBS23 Ultra handles more apps in the background and runs demanding apps without lag.
Camera
Main Camera13MP f/2.2200MP f/1.7S23 Ultra captures significantly more detailed photos, especially in low light.
Ultrawide CameraNone12.2MP f/2.2S23 Ultra allows for wider angle shots.
Telephoto CameraNone12MP f/4.9, 12MP f/2.4S23 Ultra enables optical zoom for distant subjects without quality loss.
Selfie Camera5MP f/2.412MP f/2.2S23 Ultra captures sharper and more detailed selfies.
Video Recording1080p@30fps8K@30fps, 4K@60fps, 1080p up to 960fpsS23 Ultra offers much higher quality video recording with stabilization and slow-motion capabilities.
DXOMark ScoreN/A140S23 Ultra has a flagship-level camera system.
Battery
Capacity4230mAh5000mAhS23 Ultra potentially offers longer battery life, especially with efficient processor.
Charging10W45WS23 Ultra charges much faster, reducing downtime.
Storage
Internal Storage32/128GB256/512/1024GBS23 Ultra provides ample space for apps, photos, and videos.
Expandable StorageNoNoNeither phone allows for external storage expansion.
Connectivity
Wi-FiWi-Fi 4Wi-Fi 6ES23 Ultra supports faster and more stable Wi-Fi connections.
Bluetooth5.05.3S23 Ultra has a more modern Bluetooth standard for better efficiency and features.
Software
OSAndroid 10Android 13S23 Ultra runs a newer version of Android with more features and security updates.

2. Key Differences Analysis

Oppo A15 Advantages:

  • Significantly Lighter: Easier and more comfortable for extended handheld use.
  • Lower Price: Much more affordable, making it accessible to budget-conscious users.

Practical Implications: The Oppo A15 is suitable for users who prioritize affordability and comfort over high-end performance and features.

Samsung Galaxy S23 Ultra Advantages:

  • Superior Display: AMOLED, high resolution, 120Hz refresh rate, and high brightness provide an exceptional viewing experience.
  • Flagship Performance: The Snapdragon 8 Gen 2 offers blazing-fast performance for gaming, multitasking, and demanding applications.
  • Exceptional Camera System: Versatile camera setup with high-resolution sensors, optical zoom, and advanced video recording capabilities.
  • Larger Battery and Faster Charging: Longer battery life and faster charging speeds provide greater convenience.
  • More RAM and Storage: Ensures smooth multitasking and ample storage for files and media.
  • Advanced Connectivity: Supports the latest Wi-Fi and Bluetooth standards.

Practical Implications: The S23 Ultra is for users who demand the best possible performance, camera capabilities, and overall user experience, regardless of price.

Significant Trade-offs:

  • Oppo A15: Sacrifices performance, display quality, and camera capabilities for affordability.
  • Samsung Galaxy S23 Ultra: Higher price point.

3. User Profiles & Recommendations

Oppo A15 - Ideal User:

  • Budget-conscious users
  • First-time smartphone buyers
  • Users who primarily use their phone for basic communication (calls, texts, social media)

Use Cases:

  • Basic web browsing and social media
  • Making calls and sending texts
  • Casual gaming

Samsung Galaxy S23 Ultra - Ideal User:

  • Photography enthusiasts
  • Gamers
  • Power users who need a phone for demanding tasks (video editing, graphic design)
  • Users who want the best possible display and overall experience

Use Cases:

  • Professional photography and videography
  • Mobile gaming
  • Productivity tasks (email, document editing, presentations)
  • Content consumption (streaming movies, watching videos)

4. Decision Framework

Key Questions to Consider:

  1. What is your budget? The price difference between these phones is substantial.
  2. What are your primary uses for the phone? Basic communication vs. demanding tasks.
  3. How important are camera quality and display quality to you?

Scenario-Based Recommendations:

  • Scenario 1: Tight Budget, Basic Needs: Choose the Oppo A15. It fulfills essential smartphone functions at a low cost.
  • Scenario 2: Need a Reliable Daily Driver for Moderate Use: The Oppo A15 is suitable.
  • Scenario 3: High-End Camera, Performance, and Display are Priorities: Choose the Samsung Galaxy S23 Ultra. It offers the best overall experience.
  • Scenario 4: Professional Content Creation on Mobile: The Samsung Galaxy S23 Ultra's 8K video recording and pro-grade camera features make it the better choice.

My Choice

If I were choosing between these two phones, I would pick the Samsung Galaxy S23 Ultra. While the Oppo A15 is a viable option for those on a very tight budget, the S23 Ultra offers a vastly superior user experience in nearly every aspect. The exceptional display, powerful performance, and incredible camera system make it a worthwhile investment, especially for someone who uses their phone extensively for photography, gaming, or productivity. The better screen protection is also a plus!

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
  • Digital media communication
  • Technical storytelling
  • User-centric technology insights

Bridging technical complexity with engaging, accessible narratives.