Xiaomi Mi 9 SE vs Samsung Galaxy S23: A Detailed Comparison

The Xiaomi Mi 9 SE offered incredible value when it launched, but how does it stack up against the powerhouse that is the Samsung Galaxy S23? This comparison dives deep into their features, performance, and overall appeal to help you choose the right device for your needs.
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🏆 Quick Verdict

The Samsung Galaxy S23 is the clear winner, offering vastly superior performance, a stunning display, and a more advanced camera system. While the Mi 9 SE remains a capable device, the S23's premium features and modern design justify its higher price point for most users.

PHONES
Phone Names Xiaomi Mi 9 SE Samsung Galaxy S23
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 4, 5, 7, 8, 20, 38, 40 - Global1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International
5G bands-1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International
SpeedHSPA, LTEHSPA, LTE (up to 7CA), 5G
TechnologyGSM / CDMA / HSPA / LTEGSM / CDMA / HSPA / EVDO / LTE / 5G
 1, 3, 5, 7, 8, 34, 38, 39, 40, 41 - China1, 7, 25, 28, 41, 66, 71, 78, 258, 260, 261 SA/NSA/Sub6/mmWave - USA
Launch
Announced2019, February 20. Released 2019, March2023, February 01
StatusDiscontinuedAvailable. Released 2023, February 17
Body
BuildGlass front (Gorilla Glass 5), glass back, aluminum frameGlass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame
Dimensions147.5 x 70.5 x 7.5 mm (5.81 x 2.78 x 0.30 in)146.3 x 70.9 x 7.6 mm (5.76 x 2.79 x 0.30 in)
SIMNano-SIM + Nano-SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Weight155 g (5.47 oz)168 g (5.93 oz)
 -IP68 dust/water resistant (up to 1.5m for 30 min) Armor aluminum frame with tougher drop and scratch resistance (advertised)
Display
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass Victus 2
Resolution1080 x 2340 pixels, 19.5:9 ratio (~432 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~425 ppi density)
Size5.97 inches, 87.5 cm2 (~84.1% screen-to-body ratio)6.1 inches, 90.1 cm2 (~86.8% screen-to-body ratio)
TypeSuper AMOLED, HDRDynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (HBM), 1750 nits (peak)
 -Always-on display
Platform
CPUOcta-core (2x2.3 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver)Octa-core (1x3.36 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)
ChipsetQualcomm SDM712 Snapdragon 712 (10 nm)Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm)
GPUAdreno 616Adreno 740
OSAndroid 9.0 (Pie), upgradable to Android 11, MIUI 12.5Android 13, up to 4 major Android upgrades, One UI 8
Memory
Card slotNoNo
Internal64GB 6GB RAM, 128GB 6GB RAM128GB 8GB RAM, 256GB 8GB RAM, 512GB 8GB RAM
 UFS 2.0UFS 3.1 - 128GB only UFS 4.0
Main Camera
FeaturesDual-LED flash, HDR, panoramaLED flash, auto-HDR, panorama
Single-12 MP, f/2.2, 26mm (wide), Dual Pixel PDAF
Triple48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.4, (telephoto), 1/4.0", 1.12µm, PDAF 13 MP, f/2.4, (ultrawide), 1/3.1", 1.12µm50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, OIS 10 MP, f/2.4, 70mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
Video4K@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
FeaturesHDRHDR, HDR10+
Single20 MP, f/2.0, (wide), 1/3", 0.9µm12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF
Video1080p@30fps4K@30/60fps, 1080p@30fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes, with stereo speakers
 -32-bit/384kHz audio Tuned by AKG
Comms
Bluetooth5.0, A2DP, LE, aptX HD5.3, A2DP, LE
Infrared portYes-
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, BDS, GALILEO
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C 3.2, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNAWi-Fi 802.11 a/b/g/n/ac/6e, tri-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, compassFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
 Virtual proximity sensingSamsung DeX, Samsung Wireless DeX (desktop experience support) Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified)
Battery
Charging18W wired25W wired, PD3.0, 50% in 30 min 15W wireless (Qi) 4.5W reverse wireless
TypeLi-Po 3070 mAh, non-removableLi-Ion 3900 mAh
Misc
ColorsViolet, Blue, GrayPhantom Black, Cream, Green, Lavender, Graphite, Lime
ModelsM1903F2GSM-S911B, SM-S911B/DS, SM-S911U, SM-S911U1, SM-S911W, SM-S911N, SM-S9110, SM-S911E, SM-S911E/DS
PriceAbout 460 EUR$ 237.95 / C$ 336.75 / £ 255.00 / € 322.41 / ₹ 49,990
SAR1.39 W/kg (head)     1.39 W/kg (body)0.95 W/kg (head)     0.88 W/kg (body)
SAR EU1.19 W/kg (head)     1.17 W/kg (body)0.96 W/kg (head)     1.30 W/kg (body)
Tests
Audio quality Noise -93.5dB / Crosstalk -93.5dB-
Battery life Endurance rating 73h Endurance rating 101h
Camera Photo / Video Photo / Video
Display Contrast ratio: Infinite (nominal) Contrast ratio: Infinite (nominal)
Loudspeaker Voice 86dB / Noise 79dB / Ring 87dB -27.0 LUFS (Good)
Performance AnTuTu: 180057 (v7) GeekBench: 6017 (v4.4) GFXBench: 14fps (ES 3.1 onscreen) AnTuTu: 1231075 (v9) GeekBench: 4950 (v5.1) GFXBench: 110fps (ES 3.1 onscreen)
OUR TESTS
Audio qualityNoise -93.5dB / Crosstalk -93.5dB-
Battery-Active use score 11:27h
Battery (old)Endurance rating 73hEndurance rating 101h
CameraPhoto / VideoPhoto / Video
Display637 nits max brightness (measured)1198 nits max brightness (measured)
LoudspeakerVoice 86dB / Noise 79dB / Ring 87dB-27.0 LUFS (Good)
PerformanceAnTuTu: 180057 (v7) GeekBench: 6017 (v4.4) GFXBench: 14fps (ES 3.1 onscreen)AnTuTu: 1231075 (v9) GeekBench: 4950 (v5.1) GFXBench: 110fps (ES 3.1 onscreen)

Xiaomi Mi 9 SE

  • Compact and lightweight
  • Good value for money (when new/refurbished)
  • Decent battery life (endurance rating)
  • Smooth MIUI software

  • Outdated chipset
  • Lower screen brightness
  • Less impressive camera
  • Slow charging

Samsung Galaxy S23

  • Flagship performance
  • Stunning display
  • Excellent camera system
  • Fast charging (wired & wireless)
  • Premium design and build quality

  • Higher price
  • Larger size compared to Mi 9 SE

Display Comparison

The Galaxy S23 boasts a significantly brighter display (1198 nits vs 637 nits) with superior color accuracy and vibrancy. While both have excellent contrast ratios (nominal 'infinite'), the S23's AMOLED technology provides deeper blacks and a more immersive viewing experience. The Mi 9 SE's display is still good, but noticeably less impressive.

Camera Comparison

The Galaxy S23's camera system is a major upgrade. It offers better image quality in all lighting conditions, improved zoom capabilities, and more advanced features like enhanced night mode and video stabilization. The Mi 9 SE's camera is adequate for casual photography, but lacks the detail and versatility of the S23.

Performance

The Snapdragon 8 Gen 2 in the Galaxy S23 obliterates the Snapdragon 712 in the Mi 9 SE. Expect lightning-fast app loading, seamless multitasking, and effortless handling of demanding games on the S23. The Mi 9 SE can handle everyday tasks, but struggles with more intensive applications.

Battery Life

While the Mi 9 SE has a surprisingly high endurance rating (73h), the Galaxy S23's active use score (11:27h) and endurance rating (101h) demonstrate its efficiency and longevity. The S23 also supports faster charging (25W wired, 15W wireless) and reverse wireless charging, further enhancing its convenience.

Buying Guide

The Xiaomi Mi 9 SE is ideal for budget-conscious users who prioritize a compact size and decent performance for everyday tasks. The Samsung Galaxy S23 is perfect for those seeking a flagship experience with top-tier performance, a brilliant display, and a versatile camera system, regardless of price.

Frequently Asked Questions

❓ Is the Xiaomi Mi 9 SE still worth buying?
If you're on a very tight budget and prioritize a compact phone, the Mi 9 SE can still be a decent option, especially if found at a significant discount. However, be aware of its limitations compared to newer devices.
❓ What are the biggest differences between the two phones?
The biggest differences are performance (chipset), display quality, camera capabilities, and charging speed. The Galaxy S23 offers a significantly more modern and premium experience across the board.