Asus ROG Phone 8 vs Xiaomi 14 Ultra - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 18, 2024 February 22, 2024
Release Year 2024 2024

Physical

Volume 111.96 cm³ 111.81 cm³
Screen Size to Weight Ratio 3.01 "/g 2.93 "/g
Weight 225 g 229.5 g
Height 163.8 mm 161.4 mm
Width 76.8 mm 75.3 mm
Thickness 8.9 mm 9.2 mm
Foldable Design No No
Available Colors
  • Phantom Black
  • Rebel Grey
  • Titanium Gray
  • Black
  • Blue
  • White

Display

Screen Size 6.78 " 6.73 "
Resolution 1080 x 2400 1440 x 3200
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.2 % 90 %
Pixel Density 388 PPI 522 PPI
Refresh Rate 165 Hz 120 Hz
Typical Brightness N/A 1000 nits
HBM Brightness 1600 nits N/A
Peak Brightness 2500 nits 3000 nits

Hardware

Battery Capacity per Screen Area 119.65 mAh/in² 110.39 mAh/in²
Battery Density 49.12 mAh/cm³ 44.72 mAh/cm³
Battery Capacity 5500 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm) Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
CPU Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520) Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
GPU Adreno 750 Adreno 750

Connectivity

USB Version N/A 3.2
OTG Support 1 1
DisplayPort 1 1
DisplayPort Version 1.4 N/A
USB Features USB Type-C, OTG, DisplayPort 1.4, Bottom Port USB Type-C 3.2, Gen 2, OTG, DisplayPort

Software

Operating System Android Android
Initial OS Version 14 14
Maximum OS Version 16 18

Comparison Summary

Asus ROG Phone 8 vs. Xiaomi 14 Ultra: A Holistic Technological Analysis

As a technology researcher, my analysis goes beyond simple spec comparisons to provide a holistic understanding of the Asus ROG Phone 8 and Xiaomi 14 Ultra within the broader mobile technology landscape.

1. Comprehensive Specification Mapping

FeatureAsus ROG Phone 8Xiaomi 14 UltraTechnological ContextCategory
Launch Date2024-01-182024-02-22Indicates potential market positioning and access to latest software updates.Innovation Potential
Display6.78\" LTPO AMOLED, 165Hz, 2500 nits6.73\" LTPO AMOLED, 120Hz, 3000 nitsHigh refresh rates and brightness cater to demanding gaming and multimedia consumption, reflecting a trend towards immersive mobile experiences.User Experience
Resolution1080 x 24001440 x 3200Higher resolution contributes to sharper visuals, but also impacts battery life. Xiaomi prioritizes visual fidelity.User Experience
ChipsetSnapdragon 8 Gen 3Snapdragon 8 Gen 3Both leverage cutting-edge processing power, highlighting the standardization of high-performance components in flagship devices.Performance
Battery5500 mAh5000 mAhLarger battery in the ROG Phone 8 suggests a focus on extended usage, aligning with its gaming-centric design.User Experience
OS Max Version1618Longer OS support signifies commitment to long-term usability and security updates, crucial for user trust and device longevity.Ecosystem Integration
Camera (Video)Up to 8K@24fpsUp to 8K@30fps and 1080p@1920fpsXiaomi focuses on advanced video recording capabilities, indicating a broader content creation focus. ROG Phone prioritizes core gaming performance.Innovation Potential
Price RangeMediumMediumSimilar price range suggests direct competition, requiring differentiation through specific features and targeted user experiences.Market Positioning

2. Strategic Technological Insights

Both devices represent the pinnacle of current mobile technology, utilizing the latest Snapdragon processor. However, their subtle differences reveal distinct strategic priorities:

  • Asus ROG Phone 8: Prioritizes gaming performance with a higher refresh rate display, larger battery, and specialized cooling solutions (not listed but implied by ROG branding).
  • Xiaomi 14 Ultra: Focuses on a premium multimedia experience with a higher resolution display, superior camera capabilities, and extended software support.

These choices reflect broader industry trends: increasing specialization within the flagship market, catering to specific user needs beyond general performance.

3. User Ecosystem Alignment

  • ROG Phone 8: Aligns with the mobile gaming ecosystem, appealing to users who prioritize high performance, smooth gameplay, and extended battery life for demanding gaming sessions.
  • Xiaomi 14 Ultra: Caters to a broader user base seeking a premium multimedia experience, including photography enthusiasts, content creators, and users who value a visually stunning display.

4. Future-Oriented Decision Framework

Both devices offer compelling features. However, future-proofing requires considering long-term trends:

  • Software Support: Xiaomi's commitment to longer OS updates enhances long-term value.
  • Content Creation: The Xiaomi 14 Ultra's advanced camera features align with the growing importance of mobile content creation.
  • Gaming Evolution: The ROG Phone's specialized features may become more critical as mobile gaming continues to evolve. Cloud gaming, in particular, could benefit from its focus on performance and battery life.

My Choice: Xiaomi 14 Ultra

While the ROG Phone 8 is a powerhouse for gaming, the Xiaomi 14 Ultra offers a more well-rounded and future-proof package. Its superior display, advanced camera capabilities, and longer software support cater to a broader range of needs beyond gaming. The commitment to extended OS updates ensures long-term value and security. Furthermore, the emphasis on high-quality video recording aligns with the growing trend of mobile content creation. While I appreciate the ROG Phone 8's dedication to gaming performance, the Xiaomi 14 Ultra's versatility and future-oriented features make it a more compelling choice for my needs.

Michael Chen
Michael Chen

Technology Research Specialist focused on mobile innovation and strategic technology analysis.

Core Expertise

  • Mobile technology research
  • Consumer technology trend analysis
  • Strategic device evaluation
  • Technological innovation insights

Professional Vision Bridging technical analysis with forward-looking technological understanding, transforming complex research into meaningful insights.