Xiaomi 12S vs Xiaomi 12S Ultra: The Ultimate Showdown

Xiaomi's 12S and 12S Ultra represent the pinnacle of their smartphone engineering. Both boast the powerful Snapdragon 8+ Gen 1, but cater to different user needs. This comprehensive comparison will break down the key differences to help you choose the perfect flagship for you.
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🏆 Quick Verdict

The Xiaomi 12S Ultra is the clear winner for photography enthusiasts and those prioritizing battery life. The 12S offers a more compact design and slightly faster wireless charging, making it a great choice for users who value portability and a balanced experience. Ultimately, the Ultra's camera system justifies its higher price.

PHONES
Phone Names Xiaomi 12S Xiaomi 12S Ultra
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 421, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 34, 38, 39, 40, 41, 42
5G bands1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA1, 3, 5, 8, 28, 38, 40, 41, 77, 78, 79 SA/NSA
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / EVDO / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 CDMA2000 1xEV-DO CDMA2000 1xEV-DO
Launch
Announced2022, July 042022, July 04
StatusAvailable. Released 2022, July 07Available. Released 2022, July 09
Body
BuildGlass front (Gorilla Glass Victus), glass back or eco leather back, aluminum frameGlass front (Gorilla Glass Victus), eco leather back, aluminum frame
Dimensions152.7 x 69.9 x 8.2 mm or 8.7 mm163.2 x 75 x 9.1 mm (6.43 x 2.95 x 0.36 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight179 g / 182 g (6.31 oz)225 g (7.94 oz)
 -IP68 dust/water resistant (up to 1.5m for 30 min)
Display
ProtectionCorning Gorilla Glass VictusCorning Gorilla Glass Victus
Resolution1080 x 2400 pixels, 20:9 ratio (~419 ppi density)1440 x 3200 pixels, 20:9 ratio (~522 ppi density)
Size6.28 inches, 95.2 cm2 (~89.2% screen-to-body ratio)6.73 inches, 108.9 cm2 (~89.0% screen-to-body ratio)
TypeAMOLED, 68B colors, 120Hz, Dolby Vision, HDR10+, 1100 nits (peak)LTPO2 AMOLED, 1B colors, 120Hz, Dolby Vision, HDR10+, 1000 nits (HBM), 1500 nits (peak)
Platform
CPUOcta-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
ChipsetQualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)
GPUAdreno 730Adreno 730
OSAndroid 12, MIUI 13Android 12, MIUI 13
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
 UFS 3.1UFS 3.1
Main Camera
FeaturesLeica lens, color spectrum sensor, Dual-LED dual-tone flash, HDR, panoramaLaser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama
Single32 MP, f/2.5, 26mm (wide), 0.7µm32 MP, f/2.4, 25mm (wide), 0.7µm
Triple50 MP, f/1.9, 24mm (wide), 1/1.28", 1.22µm, dual pixel PDAF, OIS 13 MP, f/2.4, 15mm, 123˚ (ultrawide), 1/3.06", 1.12µm 5 MP, f/2.4, 50mm (telephoto macro), AF50 MP, f/1.9, 23mm (wide), 1.0"-type, 1.6µm, dual pixel PDAF, OIS 48 MP, f/4.1, 120mm (periscope telephoto), 1/2.0", 0.8µm, PDAF, OIS, 5x optical zoom 48 MP, f/2.2, 13mm, 128˚ (ultrawide), 1/2.0", 0.8µm, dual pixel PDAF TOF 3D, (depth)
Video8K@24fps, 4K@30/60fps, 1080p@30/60fps, 720p@1920fps, gyro-EIS8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, 720p@3840fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K, 1080p)
Selfie camera
FeaturesHDR, panoramaHDR, panorama
Single32 MP, f/2.5, 26mm (wide), 0.7µm32 MP, f/2.4, 25mm (wide), 0.7µm
Video1080p@30/60fps, 720p@120fps, HDR1080p@30fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 24-bit/192kHz audio Tuned by Harman Kardon24-bit/192kHz audio Tuned by Harman Kardon
Comms
Bluetooth5.2, A2DP, LE, aptX HD, aptX Adaptive5.2, A2DP, LE, aptX HD, aptX Adaptive
Infrared portYesYes
NFCYesYes
PositioningGPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, DLNA
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, compass, barometer
 -Virtual proximity sensing
Battery
Charging67W wired, PD3.0, QC4, 100% in 42 min 50W wireless, 100% in 57 min 10W reverse wireless67W wired, PD3.0, QC4, 100% in 41 min 50W wireless, 100% in 52 min 10W reverse wireless
TypeLi-Po 4500 mAhLi-Po 4860 mAh
Misc
ColorsGray, White, Purple, GreenBlack, Dark Green
Models2206123SC2203121C
PriceAbout 570 EUR$ 288.00
Tests
Battery life- Endurance rating 93h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -25.6 LUFS (Very good)
Performance- AnTuTu: 1039412 (v9) GeekBench: 4300 (v5.1) GFXBench: 51fps (ES 3.1 onscreen)

Xiaomi 12S

  • More compact and pocketable
  • Slightly faster wireless charging
  • Excellent performance
  • Premium design

  • Camera not as impressive as the Ultra
  • Shorter battery life
  • Less bright display

Xiaomi 12S Ultra

  • Exceptional camera system
  • Outstanding battery life
  • Brighter and higher contrast display
  • Premium build quality

  • Larger and heavier design
  • Slower wireless charging
  • Higher price

Display Comparison

The Xiaomi 12S Ultra boasts a significantly brighter display with a measured peak brightness of 1065 nits, offering superior outdoor visibility. Its contrast ratio is also nominally infinite. The 12S has a very good display, but doesn't reach the Ultra's levels of brightness or contrast. Both use AMOLED technology with smooth 120Hz refresh rates.

Camera Comparison

This is where the 12S Ultra truly shines. Its larger sensor and advanced camera hardware deliver significantly better image quality, especially in low light. The Ultra's zoom capabilities are also far superior. The 12S still has a very capable camera system, but it can't compete with the Ultra's flagship-level performance.

Performance

Both phones are powered by the Snapdragon 8+ Gen 1, ensuring blazing-fast performance for any task. Real-world performance differences are minimal, with both handling demanding games and multitasking with ease. The 12S might have slightly better thermal management due to its smaller size, preventing throttling under sustained load.

Battery Life

The 12S Ultra's endurance rating of 93h is exceptional, indicating significantly longer battery life than the 12S. While the 12S offers fast wired and wireless charging speeds, the Ultra's larger battery capacity provides more runtime between charges.

Buying Guide

Who should buy the Xiaomi 12S? Users seeking a premium, compact flagship with excellent performance and fast charging. It's ideal for those who don't need the absolute best camera system but still want a top-tier experience. Who should buy the Xiaomi 12S Ultra? Photography lovers and power users who demand the best camera capabilities, longest battery life, and a stunning display. Be prepared for a larger, heavier device.

Frequently Asked Questions

❓ Is the Xiaomi 12S Ultra worth the extra money?
If photography is a priority, then yes. The camera improvements are substantial. If you primarily use your phone for everyday tasks and don't need the best camera, the 12S offers excellent value.
❓ Which phone is better for gaming?
Both phones offer excellent gaming performance thanks to the Snapdragon 8+ Gen 1. The 12S might have slightly better thermal management, but the difference is likely negligible.