Oppo A15 vs Xiaomi 14 Ultra - Detailed Phone Comparison

Detailed Comparison

Specification
Oppo A15
Oppo A15
Oppo

General

Launch Date October 27, 2020 February 22, 2024
Release Year 2020 2024

Physical

Volume 97.69 cm³ 111.81 cm³
Screen Size to Weight Ratio 3.73 "/g 2.93 "/g
Weight 175 g 229.5 g
Height 164 mm 161.4 mm
Width 75.4 mm 75.3 mm
Thickness 7.9 mm 9.2 mm
Foldable Design No No
Available Colors
  • Dynamic Black
  • Mystery Blue
  • Titanium Gray
  • Black
  • Blue
  • White

Display

Screen Size 6.52 " 6.73 "
Resolution 720 x 1600 1440 x 3200
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 83 % 90 %
Pixel Density 269 PPI 522 PPI
Refresh Rate N/A 120 Hz
Typical Brightness 480 nits 1000 nits
HBM Brightness N/A N/A
Peak Brightness N/A 3000 nits

Hardware

Battery Capacity per Screen Area 99.51 mAh/in² 110.39 mAh/in²
Battery Density 43.3 mAh/cm³ 44.72 mAh/cm³
Battery Capacity 4230 mAh 5000 mAh
NFC Support No Yes
Chipset Mediatek MT6765 Helio P35 (12 nm) Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
CPU Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
GPU PowerVR GE8320 Adreno 750

Connectivity

USB Version 2.0 3.2
OTG Support 1 1
DisplayPort 1
DisplayPort Version N/A N/A
USB Features microUSB 2.0, OTG USB Type-C 3.2, Gen 2, OTG, DisplayPort

Software

Operating System Android Android
Initial OS Version 10 14
Maximum OS Version 18

Comparison Summary

1. Specifications Comparison

Design

FeatureOppo A15Xiaomi 14 UltraPractical Impact
Dimensions164 × 75.4 × 7.9 mm161.4 × 75.3 × 9.2 mmXiaomi 14 Ultra is slightly shorter and wider but noticeably thicker. A15 might feel slightly slimmer in hand.
Weight175g229.5gOppo A15 is significantly lighter, making it more comfortable for extended use, especially one-handed.
Build Quality (Screen Protection)Corning Gorilla Glass 3Corning Gorilla Glass Victus 2Xiaomi 14 Ultra offers superior scratch and drop resistance, increasing the phone's longevity.

Display

FeatureOppo A15Xiaomi 14 UltraPractical Impact
Size6.52"6.73"Xiaomi 14 Ultra provides a more immersive viewing experience, better for media consumption and gaming.
Resolution720x16001440x3200Xiaomi 14 Ultra delivers significantly sharper images and text, resulting in a much clearer and more detailed visual experience.
Pixel Density (PPI)269522Text and images on the Xiaomi 14 Ultra will appear far crisper and less pixelated.
TechnologyIPS LCDAMOLEDXiaomi 14 Ultra has superior contrast, deeper blacks, more vibrant colors, and better power efficiency, especially with dark mode.
Refresh Rate60Hz120HzXiaomi 14 Ultra offers smoother scrolling, animations, and gaming experience.
Brightness0 nits3000 nitsXiaomi 14 Ultra is much easier to view outdoors in bright sunlight.

Performance

FeatureOppo A15Xiaomi 14 UltraPractical Impact
ChipsetMediatek MT6765 Helio P35 (12 nm)Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)Xiaomi 14 Ultra offers drastically faster processing speeds, smoother multitasking, and significantly better gaming performance.
AnTuTu Score113,0002,100,000Demonstrates the massive performance difference. Xiaomi 14 Ultra handles demanding apps and games with ease.
GPUPowerVR GE8320Adreno 750Xiaomi 14 Ultra provides superior graphics rendering capabilities, enabling smoother and more detailed gaming experiences.
RAM2 GB or 3 GB or 4 GB12 GB or 16 GBXiaomi 14 Ultra can handle many more apps running in the background without slowdowns.

Camera

FeatureOppo A15Xiaomi 14 UltraPractical Impact
Main Camera13MP, f/2.250MP, f/1.63, 1", Sony LYT-900Xiaomi 14 Ultra captures much more detailed photos, especially in low light, with better dynamic range and shallower depth of field.
Selfie Camera5MP, f/2.432MP, f/2.0, 1/3", Omnivision OV32BXiaomi 14 Ultra takes significantly sharper and more detailed selfies, with better low-light performance.
Telephoto LensNone50MP, f/1.8, 1/2.51", Sony IMX858Xiaomi 14 Ultra allows for optical zoom, enabling clearer photos of distant subjects without significant quality loss.
Wide Angle + Macro LensNone50MP, f/1.8, 1/2.51", Sony IMX858Xiaomi 14 Ultra allows capturing wide landscape scenes and great macro images.
Video Recording1080p@30fpsUp to 8K@24/30fpsXiaomi 14 Ultra records professional-quality videos with significantly higher resolution, better stabilization, and more frame rate options.
DXOMark ScoreN/A149 (Mobile)Provides an objective measure of camera performance, highlighting the Xiaomi 14 Ultra's superior capabilities.

Battery

FeatureOppo A15Xiaomi 14 UltraPractical Impact
Capacity4230mAh5000mAhXiaomi 14 Ultra is likely to last longer on a single charge, especially with its more efficient display.
Charging10W Fast Charging90W Fast Charging, 80W Wireless, 10W Reverse WirelessXiaomi 14 Ultra charges much faster, minimizing downtime. Wireless charging offers added convenience.

2. Key Differences Analysis

Oppo A15 Advantages:

  • Lighter Weight: Significantly more comfortable for prolonged use, especially one-handed.
  • Lower Price: Significantly more affordable, making it accessible to budget-conscious users.

Practical Implications: The Oppo A15 prioritizes portability and affordability. It is suitable for basic smartphone tasks.

Xiaomi 14 Ultra Advantages:

  • Superior Display: AMOLED, High Resolution, 120Hz Refresh Rate, High Brightness. Provides an exceptional viewing experience, especially for media consumption and gaming.
  • Flagship Performance: Snapdragon 8 Gen 3 chipset offers blazing-fast performance for all tasks.
  • Exceptional Camera System: Versatile quad-camera setup with high-resolution sensors and advanced features. Suitable for professional photography and videography.
  • Faster Charging: 90W wired and 80W wireless charging significantly reduces charging time.
  • More RAM and Storage: Allows for smoother multitasking and storing large amounts of data.
  • More Advanced Connectivity: Newer WiFi and Bluetooth standards provide faster and more reliable connections.

Practical Implications: The Xiaomi 14 Ultra is a flagship device designed for users who demand the best possible performance, display quality, and camera capabilities.

Trade-offs:

  • Weight: Xiaomi 14 Ultra is heavier, which may be a concern for some users.
  • Price: The Xiaomi 14 Ultra is significantly more expensive than the Oppo A15.

3. User Profiles & Recommendations

Oppo A15 Ideal User:

  • Budget-conscious individuals who need a basic smartphone for calling, texting, and light social media use.
  • Users who prioritize portability and comfortable one-handed use.
  • Older adults or those new to smartphones who want a simple and easy-to-use device.

Use Cases:

  • Making and receiving calls and texts.
  • Browsing social media and checking email.
  • Basic web browsing.
  • As a secondary or backup phone.

Xiaomi 14 Ultra Ideal User:

  • Photography enthusiasts and content creators who demand the best possible camera performance.
  • Gamers who need a phone that can handle demanding games at high settings.
  • Power users who multitask heavily and need a phone with fast performance and ample RAM.
  • Users who prioritize a premium display experience for media consumption.

Use Cases:

  • Professional photography and videography.
  • Mobile gaming at high settings.
  • Heavy multitasking with numerous apps open simultaneously.
  • Watching videos and movies in high resolution.
  • Using demanding productivity apps.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The price difference is substantial.
  2. What are your primary use cases? Basic communication vs. demanding tasks like gaming and photography.
  3. How important is portability? The weight difference might be a deciding factor.

Scenario-Based Recommendations:

  • Scenario 1: Limited Budget: If you have a very tight budget, the Oppo A15 is the only realistic option.
  • Scenario 2: Photography Focus: If camera quality is a top priority, the Xiaomi 14 Ultra is the clear winner.
  • Scenario 3: Balanced Usage: If you want a good balance of performance, features, and price, you should consider other phones in between these two extremes.
  • Scenario 4: Premium Experience: If you want the best possible smartphone experience, including top-tier performance, display, and camera, the Xiaomi 14 Ultra is the obvious choice.

Personal Choice

If I were to choose between these two phones, I would pick the Xiaomi 14 Ultra. While the Oppo A15 is more affordable and lighter, the Xiaomi 14 Ultra offers a vastly superior experience in almost every aspect. As a smartphone analyst and someone who values performance, display quality, and camera capabilities, the Xiaomi 14 Ultra's flagship-level specifications are worth the extra investment. The camera system alone is a significant advantage, allowing for professional-quality photos and videos. The smoother display, faster performance, and larger battery capacity further enhance the overall user experience. Even though it's heavier, the benefits far outweigh the weight disadvantage for my usage patterns.

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.