Samsung Galaxy C8 (SM-C7100 64GB) vs Xiaomi Redmi K30 (256GB)

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Side by side comparison between Samsung Galaxy C8 vs Xiaomi Redmi K30 phones, differences, pros, cons and full specifications. What's the better?

4/18/2020 1:34 PM, updated: 6/6/2025 11:25 AM

Compare Xiaomi Redmi K30 X Samsung Galaxy C8 (SM-C7100 64GB) 06Points

Specifications Compare Models Pictures

5.5"
AMOLED

1080x1920

13
MP

16mp

4GB
RAM

Octa-core

3000
mAh

(Non removable)

22Points Xiaomi Redmi K30 (256GB) Compare Samsung Galaxy C8 X

Specifications Compare Models Pictures

6.67"
IPS

1080x2400

64
MP

20mp

8GB
RAM

Octa-core

4500
mAh

(Non removable)

What's the better phone? Xiaomi Redmi K30 (256GB)

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!

6 Advantages Samsung Galaxy C8 (SM-C7100 64GB)	vs	22 Advantages Xiaomi Redmi K30 (256GB)
+180 grams (6.3 ounces)16% Lighter	vs	208 grams (7.28 ounces)
+7.9 millimeters (0.31 inches)11% Thinner	vs	8.79 millimeters (0.35 inches)
+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid	vs	TFT IPS LCD
+401 PPI2% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	395 PPI
+LED flash on both camerasAdvantage The LED flash on both cameras helps in dark places or in low light	vs	Dual-LED flash
+f/1.7 (aperture)12% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/1.9 (aperture)
2.6GHz 64bit Octa-core (16nm)	vs	+2.2GHz 64bit Octa-core (8nm)10% More powerful processor, you can open your applications faster
4GB LPDDR4X	vs	+8GB LPDDR4X100% More RAM memory. Typically more responsive and better for multitasking.
64GB (51GB available)	vs	+256GB (230GB available)4 times More internal storage for applications and files
eMMC 5.1	vs	+UFS 2.1Advantage Fastest write and read storage.
Until 256GB microSD, microSDXC	vs	+Until 512GB microSD, microSDXC100% More external storage for files using memory cards
Not supported	vs	+HDR10Advantage The HDR10 display provides vibrant colors and more details
60Hz	vs	+120Hz100% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
1080x1920 pixels	vs	+1080x2400 pixels25% Higher resolution screen
5.5"	vs	+6.67"21% Larger screen
(dual camera) 13MP + 5MP	vs	+(quad camera) 64MP + 8MP + 2MP + 2MP3 times Higher resolution main camera
HDR photo only main camera	vs	+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
(front) 16MP	vs	+(dual front camera) 20MP + 2MP38% Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)	vs	+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera
Android 8.1 Oreo	vs	+Android 11Advantage Android 11 is newer and safer
(4G LTE-A) 300 Mbps	vs	+(4G LTE-A) 800 Mbps167% Faster for surfing the internet and download files
Not supported	vs	+Face unlock 2DAdvantage Sensors help you use the device
3000 mAh	vs	+4500 mAh50% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
802.11 b/g/n [wifi4]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
4.2 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
MicroUSB 2.0, USB OTG On-The-Go	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supported	vs	+Gorilla Glass 5Advantage Protection against scratches on the screen lets you carry your phone with your keys

26 Common items in both devices

Aluminum body, glass front / Aluminum frame, glass front/back

16 million

Only digital zoom

Autofocus / PDAF: phase detection autofocus

EIS: Digital stabilization

(front) Full HD (1920x1080)

4G LTE-A

+19 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 C8 (SM-C7100 64GB)	Redmi K30 (256GB)
Change model		Choose the model
Model	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
Other model names	盖乐世 C8 4GB RAM + 64GB, SM-C7100ZKGCHC	Xiaomi Redmi K30 (256GB + 8GB RAM), M1912G7BC, M1912G7BE
Country or region available	China, Hong Kong	(Global, International)
Brand	Samsung	Xiaomi
Release date	9/1/2017	12/1/2019
Depth	7.9 millimeters (0.31 inches)	8.79 millimeters (0.35 inches)
Size (width x height)	74.7 x 152.4 millimeters (2.94 x 6 in)	76.6 x 165.3 millimeters (3.02 x 6.51 in)
Weight	180 grams (6.3 ounces)	208 grams (7.28 ounces)
Build, materials	Aluminum body, glass front	Aluminum frame, glass front/back
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
Display type	Super AMOLED	TFT IPS LCD
Screen size	5.5" inches	6.67" inches
Screen-to-body ratio	~73.3% (screen-to-body ratio)	~84.8% (screen-to-body ratio)
Display resolution	1080x1920 pixels	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	401 PPI	395 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 5
Refresh rate	60Hz	120Hz
Display features	Always-On Display	HDR10
🤖 Operating System
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
System version	Android 7.1.1 Nougat	Android 10
Firmware update	Android 8.1 Oreo	Android 11
User Interface	feature not registered	feature not registered
⚙️ Processor
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
Chipset	64bit: MediaTek Helio P25 (MT6757T) (16nm)	64bit: Qualcomm Snapdragon 730G (SM7150-AB) (8nm)
CPU	Octa-core, 2 processors: 4x 2.6GHz ARM Cortex-A53 (Quad-core) 4x 1.6GHz ARM Cortex-A53 (Quad-core)	Octa-core, 2 processors: 2x 2.2GHz Kryo 470 Gold (Dual-core) 6x 1.8GHz Kryo 470 Silver (Hexa-core)
GPU graphical controller	ARM Mali-T880 MP2 (1GHz)	Qualcomm Adreno 618 (700MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
RAM memory	4GB LPDDR4X	8GB LPDDR4X
Internal storage	64GB (51GB available) eMMC 5.1	256GB (230GB available) UFS 2.1
External storage	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Until 512GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	300/50 Mbps	800/150 Mbps
Network technology	2G, 3G, 4G	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	CDMA 800, GSM 850/900/1800/1900	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/2100
Primary 4G network	LTE Cat6 (Bands 1, 3, 5, 7, 8) TD-LTE (Bands 38, 39, 40, 41)	LTE Cat15/13 (Bands 1, 3, 5, 8) TD-LTE (Bands 34, 38, 39, 40, 41) VoLTE
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, 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	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	GPRS, EDGE
📷 Camera
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
Back camera (main camera)	(dual camera) 13 megapixels 5MP f/1.9	(quad camera) 64 megapixels 8MP ultrawide f/2.213mm1/4.0"1.12µm 2MP macro f/2.41/5.0"1.75µm 2MP depth f/2.4
Main camera resolution	4128x3096 pixels	10120x6328 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash on both cameras	Dual-LED flash
Focal aperture	f/1.7 (aperture)	f/1.9 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/1.72" inches
Pixel size	feature not registered	0.8µm pixel
Autofocus	Autofocus	PDAF: phase detection 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, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo only main camera	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
Front camera (secondary)	16 megapixels	(dual front camera) 20 megapixels 2MP depth f/2.41/5"1.75µm
Front camera resolution	4608x3456 pixels	5184x3840 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	LED	Not supported
Focal aperture	f/1.9 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	27mm (lens)
Sensor size	feature not registered	1/3.4" inches
Pixel size	feature not registered	0.8µm pixel
🔉 Sound and multimedia
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
Loudspeaker	Mono sound (not stereo)	Supported
Active noise cancellation	2 microphones	2 microphones or more
Radio	FM	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, MKV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, OGG, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
USB	MicroUSB 2.0, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	4.2 + A2DP	5.0 + A2DP/LE
WiFi	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Supported
Infrared port	Not supported	Supported
🧭 Sensors
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor (front-mounted) Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3000 mAh	4500 mAh
Charger, watts	Wired charging	27W Wired fast charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	16 hours	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder, Voice commands
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: Black, Gold, Pink	• Colors: Blue, Red, Purple • MIUI 11, 12 • Game Turbo 2.0 • 24-bit/192kHz audio
☢️ Radiation rate
	Galaxy C8 (SM-C7100 64GB)	Redmi K30 (256GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.719W/kg (head), 1.26W/kg (body)	feature not registered