Samsung Galaxy S23 Ultra vs Xiaomi 13 Ultra - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date February 17, 2023 April 21, 2023
Release Year 2023 2023

Physical

Volume 113.58 cm³ 110.79 cm³
Screen Size to Weight Ratio 2.91 "/g 2.96 "/g
Weight 234 g 227 g
Height 163.4 mm 163.2 mm
Width 78.1 mm 74.6 mm
Thickness 8.9 mm 9.1 mm
Foldable Design No No
Available Colors
  • Red
  • Green
  • Graphite
  • Phantom Black
  • Lavender
  • Cream
  • Sky Blue
  • Lime
  • BMW M Edition
  • Black
  • Yellow
  • Blue
  • White
  • Orange
  • Olive Green

Display

Screen Size 6.8 " 6.73 "
Resolution 1440 x 3088 1440 x 3200
Aspect Ratio 19.5:9 20:9
Screen-to-Body Ratio 89.5 % 89.8 %
Pixel Density 500 PPI 522 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness 1200 nits 1300 nits
Peak Brightness 1750 nits 2600 nits

Hardware

Battery Capacity per Screen Area 108.13 mAh/in² 110.39 mAh/in²
Battery Density 44.02 mAh/cm³ 45.13 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm) Qualcomm SM8550-AB Snapdragon 8 Gen 2 (4 nm)
CPU Octa-core (1x3.36 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510) Octa-core (1x3.2 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)
GPU Adreno 740 Adreno 740

Connectivity

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

Software

Operating System Android Android
Initial OS Version 13 13
Maximum OS Version 17 14

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy S23 UltraXiaomi 13 UltraPractical Impact
Design
Dimensions (mm)163.4 x 78.1 x 8.9163.2 x 74.6 x 9.1Xiaomi 13 Ultra is slightly narrower and thicker. Negligible difference in daily use.
Weight (g)234227Xiaomi 13 Ultra is slightly lighter, but the difference is minimal.
Display
Size (inches)6.86.73Virtually identical screen real estate.
Resolution (px)1440 x 30881440 x 3200Both offer sharp, high-resolution displays. Xiaomi has a slightly taller aspect ratio.
TypeDynamic AMOLED 2XLTPO AMOLEDBoth offer excellent color accuracy and contrast. LTPO on Xiaomi allows for variable refresh rate, potentially saving battery.
Peak Brightness (nits)17502600Xiaomi 13 Ultra offers significantly higher peak brightness, improving outdoor visibility.
Performance
ChipsetSnapdragon 8 Gen 2 (4 nm)Snapdragon 8 Gen 2 (4 nm)Both phones utilize the same powerful chipset, ensuring top-tier performance. Minor clock speed differences (AC vs AB variant) are unlikely to noticeably impact real-world use.
CPUOcta-core (up to 3.36 GHz)Octa-core (up to 3.2 GHz)Negligible performance difference in everyday tasks.
GPUAdreno 740Adreno 740Identical GPUs, ensuring similar gaming and graphics performance.
RAM (GB)8/1212/16Xiaomi offers configurations with higher RAM, potentially benefiting multitasking and demanding applications.
Camera
Main Camera (MP)20050Samsung boasts higher resolution, but Xiaomi utilizes a larger 1-inch sensor, potentially capturing more light and detail.
Ultrawide (MP)1250Xiaomi offers a significantly higher resolution ultrawide camera.
Telephoto (MP)10x:10, 3x:10Variable: 50, 3.2x:50Both offer versatile zoom capabilities. Xiaomi's Leica-tuned lenses might offer superior image quality, particularly in zoom ranges.
DxOMark Score140140Both phones achieve the same overall DxOMark score, suggesting comparable camera performance. Specific sub-scores highlight individual strengths; Xiaomi edges out in video (137 vs. unknown for Samsung).
Battery
Capacity (mAh)50005000Identical battery capacities.
Fast Charging (W)4590Xiaomi offers significantly faster wired charging.

2. Key Differences Analysis

Samsung Galaxy S23 Ultra Advantages:

  • S Pen Integration: Offers unique stylus functionality for note-taking, drawing, and precise control.
  • Potentially wider software update support: Samsung typically provides longer software updates compared to Xiaomi.

Xiaomi 13 Ultra Advantages:

  • Superior Display Brightness: Significantly brighter display for better outdoor visibility.
  • Faster Charging: 90W fast charging significantly reduces charging time.
  • Leica Camera Collaboration: Potentially better image quality, especially in challenging lighting conditions and zoom scenarios, due to Leica lens expertise.
  • Larger Sensor: 1-inch main sensor potentially offers superior low-light performance and depth of field.

3. User Profiles & Recommendations

Samsung Galaxy S23 Ultra: Ideal for users who:

  • Value stylus functionality (note-taking, sketching, precise interactions).
  • Prioritize long-term software updates and a stable ecosystem.

Xiaomi 13 Ultra: Ideal for users who:

  • Prioritize camera quality and versatility, especially in low light and zoom scenarios.
  • Need the fastest possible charging speeds.
  • Appreciate a brighter display for outdoor use.

4. Decision Framework

Key Questions for Buyers:

  1. Is stylus functionality essential? If yes, the S23 Ultra is the clear choice.
  2. How important is camera quality? Xiaomi 13 Ultra's Leica collaboration and larger sensor might provide an edge in overall image quality.
  3. What is your budget and charging speed preference? Xiaomi 13 Ultra is pricier but offers significantly faster charging.

My Choice: Xiaomi 13 Ultra

While the S Pen is a unique feature, the Xiaomi 13 Ultra's superior camera system (Leica collaboration, 1-inch sensor), significantly faster charging, and brighter display are more compelling to me. I prioritize camera quality and a quick charging experience, making the Xiaomi 13 Ultra the better fit for my needs despite the higher price. The slight differences in CPU performance are negligible for my use case. The potential for better low-light photos and sharper zoom images from the larger sensor and Leica lens tuning outweighs the S Pen's benefits for me personally.

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.