Xiaomi Mi 9 SE (128GB) vs Samsung Galaxy S2 (SGH-i777 16GB)

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Side by side comparison between Xiaomi Mi 9 SE vs Samsung Galaxy S2 (SGH-i777) phones, differences, pros, cons and full specifications. What's the better?

3/9/2019 12:42 PM, updated: 1/25/2023 4:06 AM

Compare Samsung Galaxy S2 (SGH-i777) X Xiaomi Mi 9 SE (128GB) 25Points

Specifications Compare Models Pictures

5.97"
AMOLED

1080x2340

48
MP

20mp

6GB
RAM

Octa-core

3070
mAh

(Non removable)

05Points Samsung Galaxy S2 (SGH-i777 16GB) Compare Xiaomi Mi 9 SE X

Specifications Compare Models Pictures

4.3"
AMOLED

480x800

8
MP

2mp

1GB
RAM

Dual-core

1650
mAh

(Removable)

What's the better phone? Xiaomi Mi 9 SE (128GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

25 Advantages Xiaomi Mi 9 SE (128GB)	vs	5 Advantages Samsung Galaxy S2 (SGH-i777 16GB)
+2.3GHz 64bit Octa-core (10nm)3 times More powerful processor, you can open your applications faster	vs	1.2GHz 32bit Dual-core
+6GB LPDDR4X5 times More RAM memory. Typically more responsive and better for multitasking.	vs	1GB LPDDR2
+128GB (109GB available)7 times More internal storage for applications and files	vs	16GB (13GB available)
+7.45 millimeters (0.29 inches)19% Thinner	vs	8.9 millimeters (0.35 inches)
+Aluminum frame, glass front/backAdvantage More resistant material	vs	Plastic body, glass front
+1080x2340 pixels6 times Higher resolution screen	vs	480x800 pixels
+432 PPI99% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	217 PPI
+5.97"39% Larger screen	vs	4.3"
+(triple camera) 48MP + 13MP + 8MP8 times Higher resolution main camera	vs	(back) 8MP
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	Not supported
+(front) 20MP9 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 2MP
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+Android 11Advantage Android 11 is newer and safer	vs	Android 2.3.6 Gingerbread
+4G LTE-AAdvantage The 4G LTE-A network is newer and faster	vs	3G+ HSPA+
+(4G LTE-A) 800 Mbps37 times Faster for surfing the internet and download files	vs	(3G+ HSPA+) 21 Mbps
+Face unlock 2DAdvantage Sensors help you use the device	vs	Not supported
+Fingerprint sensor (under display)Advantage Sensors help you use the device	vs	Not supported
+3070 mAh86% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	1650 mAh
+2 slots (Dual-SIM)Advantage You can have more mobile carriers/operators on the same device.	vs	1 slot (Single-SIM) (dedicated slot)
+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster	vs	802.11 a/b/g/n [wifi4]
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	3.0 + A2DP
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	MicroUSB 2.0, USB OTG On-The-Go
+HTML, XHTML, HTML5Advantage Better sites viewing on the internet	vs	HTML, XHTML, Flash player
Not supported	vs	+Until 32GB microSD, microSDHCAdvantage More external storage for files using memory cards
155 grams (5.43 ounces)	vs	+122 grams (4.27 ounces)27% Lighter
Virtual proximity sensor	vs	+Proximity sensorAdvantage Sensors help you use the device
LiPo: li-ion polymer (Non removable)	vs	+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily
Type-C jack with 3.5mm jack adapter	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores

18 Common items in both devices

Super AMOLED / Super AMOLED Plus

16 million

Only digital zoom

LDAF/PDAF: laser/phase detection autofocus / Autofocus

EIS: Digital stabilization

Capacitive

Multitouch

+11 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
Change model		Choose the model
Model	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
Other model names	小米9 SE M1903F2G, M1903F2A, Xiaomi Grus	AT&T Samsung Galaxy S II i777, Samsung Attain
Country or region available	(Global, International), China	USA
Brand	Xiaomi	Samsung
Release date	3/1/2019, Announced: 2/20/2019	10/2/2011
Depth	7.45 millimeters (0.29 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	70.5 x 147.5 millimeters (2.78 x 5.81 in)	66 x 126 millimeters (2.6 x 4.96 in)
Weight	155 grams (5.43 ounces)	122 grams (4.27 ounces)
Build, materials	Aluminum frame, glass front/back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
Display type	Super AMOLED	Super AMOLED Plus
Screen size	5.97" inches	4.3" inches
Screen-to-body ratio	~84.1% (screen-to-body ratio)	~63.3% (screen-to-body ratio)
Display resolution	1080x2340 pixels (19.5:9)	480x800 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	432 PPI	217 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Gorilla Glass
Refresh rate	60Hz	feature not registered
Display features	HDR8	feature not registered
🤖 Operating System
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
System version	Android 9.0 Pie	Android 2.3.4 Gingerbread
Firmware update	Android 11	Android 2.3.6 Gingerbread
User Interface	MIUI 10 / 11 / 12.5	feature not registered
⚙️ Processor
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
Chipset	64bit: Qualcomm Snapdragon 712 (SDM712) (10nm)	32bit: Samsung Exynos 4 Dual 4210 (45nm)
CPU	Octa-core, 2 processors: 2x 2.3GHz Kryo 360 Gold (Dual-core) 6x 1.7GHz Kryo 360 Silver (Hexa-core)	Dual-core, 1 processor: 2x 1.2GHz ARM Cortex-A9 (Dual-core)
GPU graphical controller	Qualcomm Adreno 616 (610MHz)	ARM Mali-400 MP4
Performance (benchmark)	AnTuTu: 180057 (v7) Geekbench: 6017 (v4.4) GFXBench: 14fps (ES 3.1 onscreen)	feature not registered
💽 Memory and storage
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
RAM memory	6GB LPDDR4X	1GB LPDDR2
Internal storage	128GB (109GB available) UFS 2.0	16GB (13GB available)
External storage	Not supported	Until 32GB microSD, microSDHC (dedicated slot)
📶 Mobile networks
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Not supported
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-SIM) Standard mini-SIM (2FF)
Maximum Download / Upload	800/150 Mbps	21/5.76 Mbps
Network technology	2G, 3G, 4G	2G, 3G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	CDMA 800, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100	UMTS 850/1900/2100
Primary 4G network	LTE Cat15 (1, 3, 5, 7, 8) TD-LTE (34, 38, 39, 40, 41) VoLTE	Not supported
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
Secondary 2G network	GSM 850/900/1800/1900	Not supported
Secondary 3G network	UMTS 850/900/1900/2100	Not supported
Secondary 4G network	LTE Cat15 (1, 3, 5, 7, 8) TD-LTE (34, 38, 39, 40, 41) VoLTE	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	Not supported
📷 Camera
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
Back camera (main camera)	(triple camera) 48 megapixels 13MP ultrawide f/2.41.12µm 8MP telephoto f/2.41.12µmPDAF	8 megapixels
Main camera resolution	8000x6000 pixels	3264x2448 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.8 (aperture)	feature not registered
Focal length	feature not registered	feature not registered
Sensor size	1/2" inches	feature not registered
Pixel size	0.8µm pixel	feature not registered
Autofocus	LDAF/PDAF: laser/phase detection autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	Not supported
Camera extras	feature not registered	feature not registered
📸 Front camera
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
Front camera (secondary)	20 megapixels	2 megapixels
Front camera resolution	5184x3840 pixels	1600x1200 pixels
Video recording (secondary)	Full HD (1920x1080)	Not supported
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	feature not registered
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	0.9µm pixel	feature not registered
🔉 Sound and multimedia
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
Loudspeaker	Mono sound (not stereo)	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.264, H.263, XviD
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	MicroUSB 2.0, USB OTG On-The-Go
Audio output	Type-C jack with 3.5mm jack adapter	3.5mm jack
TV output	USB Type-C (reversible)	Micro-B USB MHL
Bluetooth	5.0 + A2DP/LE	3.0 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot
DLNA	Supported	feature not registered
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging
NFC	Supported	Not supported
Infrared port	Supported	feature not registered
🧭 Sensors
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Virtual proximity sensor	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	3070 mAh	1650 mAh
Charger, watts	18W Wired fast charging	Wired charging
Inductive / wireless charging	Not supported	feature not registered
Talk time autonomy	feature not registered	8 hours
Standby	feature not registered	400 hours (16.7 days)
➕ Other features
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (Swype), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, Flash player
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Gray, Violet, Blue	• Colors: Black • Samsung TouchWiz 4.0 UI Java framework
☢️ Radiation rate
	Xiaomi Mi 9 SE (128GB)	Galaxy S2 (SGH-i777 16GB)
SAR 1.6W/kg (USA, Mexico, etc.)	1.39W/kg (head), 1.39W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	1.19W/kg (head), 1.17W/kg (body)	feature not registered