Google Pixel 9a vs Mi 12S Ultra

Direct side-by-side battle analyzing display brightness, chipset benchmark percentiles, multi-camera arrays, battery capacity, and charging speeds.

Smartphone Battle

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Google · 2025

Google Pixel 9a

$499

83.7/ 100

Overall

Exceptional

BeastScore

83.7

Benchmark

Performance80/100

Camera82/100

Battery86/100

Xiaomi · 2022

Mi 12S Ultra

Price on request

83.9/ 100

Overall

Exceptional

BeastScore

83.9

Benchmark

Performance90/100

Camera84/100

Battery82/100

Which Phone Should You Buy: Key Reasons & Hardware Advantages

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Reasons to buy Google Pixel 9a:

✓39g lighter chassis (186g) optimized for one-handed ergonomics
✓$9500 lower launch MSRP ($499 vs $9999)
✓Larger 5,100 mAh battery capacity (+240 mAh more capacity)

Reasons to buy Mi 12S Ultra:

✓50.3MP primary camera sensor with 4K/120fps video recording
✓6.73" display with 120Hz ProMotion refresh rate

How Do the Specifications Compare Side-by-Side?

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Specification	Google Pixel 9a	Mi 12S Ultra
1. Display & Screen
Screen Type & Tech	OLED	AM-OLED
Screen Size	6.3"	6.73"
Resolution & Density	2424x1080 (422 ppi)	1440x3200 (521 ppi)
Refresh Rate	120 Hz ProMotion	120 Hz ProMotion
Brightness	2,700 nits peak	N/A
Screen Protection	Scratch-resistant glass	Scratch-resistant glass
2. Platform & Performance
Chipset / Processor	High performance SoC	High performance SoC
CPU Cores	Multi-core high performance	Multi-core high performance
GPU Graphics	Integrated Graphics	Integrated Graphics
Operating System	Android 15	Android 12
3. Memory & Storage
RAM Memory	8 GB	12 GB
Internal Storage	128GB / 256GB	256GB / 512GB
Storage Speed	High-speed flash	High-speed flash
Card Slot	No	No
4. Main Camera Optics
Primary Camera	48 MP, f/1.7, OIS, Samsung GN3	50.3 MP
Telephoto Zoom	None (Digital zoom only)	None (Digital zoom only)
Ultrawide Camera	13 MP, f/2.2	N/A
LiDAR / Depth	None	None
5. Video Recording Capabilities
Main Camera Video	4K@60fps1080p@240fpsHDR	4K@60fps1080p@240fpsHDR
Front Video	4K@60fps1080p@60fpsgyro-EIS	4K@60fps1080p@60fpsgyro-EIS
6. Selfie Camera
Selfie Lens	13 MP, f/2.2	32 MP
7. Body & Dimensions
Dimensions	154.7 x 73.3 x 8.9 mm	163.17 x 74.97 x 9.06 mm
Weight	186 g	225 g
Build Materials	Glass front, metal/glass frame	Glass front, metal/glass frame
SIM Type	Nano-SIM / eSIM support	Nano-SIM / eSIM support
Water Resistance	IP68	Not certified
8. Battery & Charging
Battery Capacity	5,100 mAh	4,860 mAh
Wired Fast Charging	23W wired fast charging	120W wired fast charging
Wireless Charging	7W wireless charging	Not supported
Reverse Charging	Reverse wireless charging	Reverse wireless charging
9. Sound & Audio
Loudspeaker	Stereo speakers	Stereo speakers
3.5mm Headphone Jack	No	No
10. Connectivity & Comms
Wi-Fi Standard	Wi-Fi 6E	Wi-Fi 7 / 6E tri-band
Bluetooth	5.3	Bluetooth 5.2
USB Port & Speed	USB-C 3.2	USB C reversible
NFC	Yes (contactless payment)	Yes
11. Sensors & Security
Sensors	Biometric fingerprint/face, accelerometer, gyro, compass	Biometric fingerprint/face, accelerometer, gyro, compass
Satellite Features	Emergency SOS via satellite (select markets)	Emergency SOS via satellite (select markets)
12. Colors & Overview
Colors	Standard finishes	Standard finishes
Launch Price	$499	Price on request

Editorial Lab Verdict

Mi 12S Ultra edges ahead with a BeastScore of 83.9/100

After comprehensive hardware benchmark comparisons, Mi 12S Ultra ranks as the overall top pick in this matchup. Key differentiators include its advanced processor architecture and verified 84/100 camera rating.

When to buy Google Pixel 9a:

Larger battery capacity: 5,100 mAh (+240 mAh more) · Brighter screen: 2,700 nits peak vs 0 nits

When to buy Mi 12S Ultra:

Higher overall BeastScore: 83.9 vs top rival 83.7 · Significantly faster wired charging: 120W vs max 23W

Quick Answers

Frequently Asked Questions: Google Pixel 9a vs Mi 12S Ultra

Which phone is better: Google Pixel 9a or Mi 12S Ultra?

Mi 12S Ultra leads with an overall BeastScore of 83.9/100 compared to Google Pixel 9a (83.7/100), driven by advantages in Higher overall BeastScore: 83.9 vs top rival 83.7 and Significantly faster wired charging: 120W vs max 23W.