Samsung Galaxy S21 FE (SM-G990B2/DS 128GB) vs Xiaomi Mi 6 (64GB)

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Side by side comparison between Samsung Galaxy S21 FE vs Xiaomi Mi 6 phones, differences, pros, cons and full specifications. What's the better?

2/8/2023 2:37 PM, updated: 5/19/2025 11:24 AM

Compare Xiaomi Mi 6 X Samsung Galaxy S21 FE (SM-G990B2/DS 128GB) 19Points

Specifications Compare Models Pictures

6.4"
AMOLED

1080x2400

12.2
MP

32mp

6GB
RAM

Octa-core

4500
mAh

(Non removable)

04Points Xiaomi Mi 6 (64GB) Compare Samsung Galaxy S21 FE X

Specifications Compare Models Pictures

5.15"
IPS

1080x1920

12.2
MP

8mp

6GB
RAM

Octa-core

3350
mAh

(Non removable)

What's the better phone? Samsung Galaxy S21 FE (SM-G990B2/DS 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!

19 Advantages Samsung Galaxy S21 FE (SM-G990B2/DS 128GB)	vs	4 Advantages Xiaomi Mi 6 (64GB)
+2.84GHz 64bit Octa-core (5nm)14% More powerful processor, you can open your applications faster	vs	2.45GHz 64bit Octa-core (10nm)
+6GB LPDDR5Advantage This RAM type is better and more efficient.	vs	6GB LPDDR4X
+128GB (97GB available)83% More internal storage for applications and files	vs	64GB (53GB available)
+Dynamic AMOLEDAdvantage Dynamic AMOLED display is brighter and more vivid	vs	TFT IPS LCD
+1080x2400 pixels25% Higher resolution screen	vs	1080x1920 pixels
+6.4"24% Larger screen	vs	5.15"
+(triple camera) 12.2MP + 12MP + 8MP33% Higher resolution main camera	vs	(dual camera) 12.2MP + 12MP
+1/1.76" inches65% The larger sensor camera lets you take photos with better depth.	vs	1/2.9" inches
+(front) 32MP3 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 8MP
+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera	vs	(front) Full HD (1920x1080)
+Android 15Advantage Android 15 is newer and safer	vs	Android 7.1.1 Nougat
+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster	vs	4G LTE-A
+(5G SA/NSA) 2000 Mbps3 times Faster for surfing the internet and download files	vs	(4G LTE-A) 450 Mbps
+Face unlockAdvantage Sensors help you use the device	vs	Not supported
+4500 mAh34% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	3350 mAh
+802.11 a/b/g/n/ac/ax [wifi6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster	vs	802.11 a/b/g/n/ac [wifi5]
+USB 3.2 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.	vs	USB 2.0 Type-C reversible connector
+Gorilla Glass VictusAdvantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
+IP68 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example	vs	Water splash resistant (don't immerse)
177 grams (6.2 ounces)	vs	+168 grams (5.88 ounces)5% Lighter
7.9 millimeters (0.31 inches)	vs	+7.5 millimeters (0.3 inches)5% Thinner
411 PPI	vs	+428 PPI4% Crisper display of text, images and videos because it has more pixels per inch (ppi)
LED flash	vs	+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light

29 Common items in both devices

16 million

Digital and optical zoom

PDAF: phase detection autofocus

OIS: Optical stabilization / OIS (4-axis): Optical stabilization

BSI sensor

HDR photo/video on both cameras / HDR photo on both cameras

f/1.8 (aperture)

+22 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
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
Change model		Choose the model
Model	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
Other model names	Galaxy S21 FE 5G SM-G990B2/Dual-SIM (Snapdragon)	Xiaomi Mi6 MCE16, Xiaomi Sagit
Country or region available	(Europe)	(Global, International), China, Hong Kong, Taiwan
Brand	Samsung	Xiaomi
Release date	1/7/2022, Announced: 1/4/2022	4/1/2017
Depth	7.9 millimeters (0.31 inches)	7.5 millimeters (0.3 inches)
Size (width x height)	74.5 x 155.7 millimeters (2.93 x 6.13 in)	70.5 x 145.2 millimeters (2.78 x 5.72 in)
Weight	177 grams (6.2 ounces)	168 grams (5.88 ounces)
Build, materials	Aluminum body, glass front, plastic back	feature not registered
Protection against water and others	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant	Water splash resistant (don't immerse)
📲 Display
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
Display type	Dynamic AMOLED	TFT IPS LCD
Screen size	6.4" inches	5.15" inches
Screen-to-body ratio	~85.3% (screen-to-body ratio)	~71.4% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	1080x1920 pixels
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	411 PPI	428 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass Victus	Not supported
Refresh rate	120Hz	feature not registered
Display features	1300nits[peak] HDR10+ Always-On Display	feature not registered
🤖 Operating System
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
System version	Android 12	Android 7.1.1 Nougat
Firmware update	Android 15	feature not registered
User Interface	One UI 4.1 / 5.1 / 6.0 / 7.0	feature not registered
⚙️ Processor
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
Chipset	64bit: Qualcomm Snapdragon 888 (SM8350) (5nm)	64bit: Qualcomm Snapdragon 835 (MSM8998) (10nm)
CPU	Octa-core, 3 processors: 1x 2.84GHz Kryo 680 (Single-core) 3x 2.42GHz Kryo 680 (Triple-core) 4x 1.8GHz Kryo 680 (Quad-core)	Octa-core, 2 processors: 4x 2.45GHz Kryo 280 (Quad-core) 4x 1.9GHz Kryo 280 (Quad-core)
GPU graphical controller	Qualcomm Adreno 660 (840MHz)	Qualcomm Adreno 540 (670-710MHz)
Performance (benchmark)	AnTuTu: 566529 (v8), 719696 (v9) Geekbench: 3049 (v5.1) GFXBench: 56fps (ES 3.1 onscreen)	feature not registered
💽 Memory and storage
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
RAM memory	6GB LPDDR5	6GB LPDDR4X
Internal storage	128GB (97GB available) UFS 3.1	64GB (53GB available)
External storage	Not supported	Not supported
📶 Mobile networks
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	2000/1024 Mbps	450/50 Mbps
Network technology	2G, 3G, 4G, 5G	2G, 3G, 4G
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	GSM 850/900/1800/1900	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100
Primary 4G network	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 66) TD-LTE (38, 40, 41) VoLTE	LTE Cat9 850/900/1800/2100/2600 (Bands 1,3,5,7,8) TD-LTE 1900/2300/2500/2600 (Bands 38,39,40,41)
Primary 5G network	SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78)	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	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
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	UMTS 850/900/1700/1900/2100	Not supported
Secondary 4G network	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 66) TD-LTE (38, 40, 41) VoLTE	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	GPRS, EDGE
📷 Camera
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
Back camera (main camera)	(triple camera) 12.2 megapixels 12MP ultrawide f/2.2123°13mm1/3"1.12µm 8MP telephoto f/2.476mm1/4.5"1.0µmPDAFOIS3x-optical-zoom	(dual camera) 12.2 megapixels 12MP f/2.652mm
Main camera resolution	4032x3024 pixels	4032x3016 pixels
Video recording (primary)	4K UHD (3840x2160) 60 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	Dual-LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	26mm (lens)	27mm (lens)
Sensor size	1/1.76" inches	1/2.9" inches
Pixel size	1.8µm pixel	1.25µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	OIS (4-axis): Optical stabilization
Zoom	Digital and optical zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Supported
HDR	HDR photo/video on both cameras	HDR photo on both cameras
Camera extras	4K@30/60fps 1080p@30/60fps 1080p@240fps (slow motion) 720p@960fps (slow motion)	feature not registered
📸 Front camera
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
Front camera (secondary)	32 megapixels	8 megapixels
Front camera resolution	6528x4896 pixels	3264x2448 pixels
Video recording (secondary)	4K UHD (3840x2160)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	feature not registered
Focal length	26mm (lens)	feature not registered
Sensor size	1/2.74" inches	feature not registered
Pixel size	0.8µm pixel	feature not registered
🔉 Sound and multimedia
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
Loudspeaker	Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG	Supported
Active noise cancellation	2 microphones	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.265, H.264, H.263, DivX, XviD
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, OGG, eAAC+, FLAC
🔌 Connectivity
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
USB	USB 3.2 Type-C, USB OTG On-The-Go	USB 2.0 Type-C reversible connector
Audio output	Type-C reversible connector	Type-C reversible connector
TV output	USB Type-C SlimPort®	Not supported
Bluetooth	5.0 + A2DP/LE	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Supported
🧭 Sensors
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
Sensors	Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4500 mAh	3350 mAh
Charger, watts	25W Wired fast charging Reverse charging by cable USB Power Delivery 3.0	Wired charging
Inductive / wireless charging	15W Qi wireless charging 4.5W Reverse wireless charging	feature not registered
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), 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, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Graphite, White, Lavender, Olive	• Colors: Black, Blue, White • USB OTG On-The-Go • MIUI 8.0 • Fast battery charging • Quick Charge 3.0 • VoLTE
☢️ Radiation rate
	Galaxy S21 FE (SM-G990B2/DS 128GB)	Xiaomi Mi 6 (64GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.952W/kg (head), 1.48W/kg (body)	feature not registered