Archos 55b Cobalt vs Xiaomi Redmi K30 Pro: specs comparison

Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

Display technology

OLED versus LCD

55b Cobalt:

LCD

Redmi K30 Pro:

OLED
Weight

55b Cobalt: 30 g lighter

55b Cobalt:

188 g

Redmi K30 Pro:

218 g
Screen diagonal

55b Cobalt: 1.17 in smaller diagonal

55b Cobalt:

5.5 in

Redmi K30 Pro:

6.67 in
Chipset

55b Cobalt:

Qualcomm MSM8909 Snapdragon 210 (28 nm)

Redmi K30 Pro:

Qualcomm SM8250 Snapdragon 865 (7 nm+)
Rear camera layout

55b Cobalt:

Single

Redmi K30 Pro:

Quad
Release year

55b Cobalt:

2017

Redmi K30 Pro:

2020

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

1. 55b Cobalt

Height:

Unknown
Width:

Unknown
Depth:

Unknown

Unavailable dimensions are omitted from the drawing.
2. Redmi K30 Pro

Height:

163.3 mm
Width:

75.4 mm
Depth:

8.9 mm

Weight

Bars start at zero and share a scale within this chart.

1. 55b Cobalt

188 g
2. Redmi K30 Pro

218 g

+30 g versus 55b Cobalt

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

1. 55b Cobalt

Screen diagonal:

5.5 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

83.4 cm²
2. Redmi K30 Pro

Screen diagonal:

6.67 in

Aspect ratio (height:width):

20:9

Approximate rectangular screen area:

107.4 cm²

Redmi K30 Pro has approximately 28.8% more rectangular screen area than 55b Cobalt.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM for 55b Cobalt, Redmi K30 Pro, compared at the same storage capacity.
Storage	55b Cobalt	Redmi K30 Pro
128 GB	Unknown	6 / 8 GB RAM Alternative RAM configurations
256 GB	Unknown	8 GB RAM

55b Cobalt: Original memory entry

16/32 GB · 1/2 GB RAM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. 55b Cobalt

NFC:: See details Super AMOLED
Headphone jack:: Yes
Memory card support:: See details microSD · up to 64 GB (dedicated slot)

2. Redmi K30 Pro

NFC:: Yes
Headphone jack:: Yes
Memory card support:: No

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

1. 55b Cobalt

2600 mAh
2. Redmi K30 Pro

4700 mAh

+2100 mAh versus 55b Cobalt

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. 55b Cobalt2. Redmi K30 Pro

Everyday essentials

Everyday essentials — specifications for 55b Cobalt, Redmi K30 Pro.
Specification	55b Cobalt	Redmi K30 Pro
Dimensions (HxWxD)	155 Х 79 Х 0 mm	163.3 Х 75.4 Х 8.9 mm
Weight	188 g	218 g
Technology	IPS LCD	Super AMOLED
Screen size	5.5" inch	6.67" inch
Screen resolution	720 x 1280 px	1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	16/32 GB 1/2 GB RAM	128GB 6GB RAM 128GB 8GB RAM 256GB 8GB RAM
Memory card support	microSD up to 64 GB (dedicated slot)	No
Battery Capacity is not battery life. No endurance test is implied.	2600 mAh Removable Li-Ion	4700 mAh Non-removable Li-Po
Operating system OS	Android 6.0 (Marshmallow)	Android 10.0; MIUI 11
Chipset	Qualcomm MSM8909 Snapdragon 210 (28 nm)	Qualcomm SM8250 Snapdragon 865 (7 nm+)
NFC	Super AMOLED	Yes
Headphone jack	Yes	Yes

Display

Display — specifications for 55b Cobalt, Redmi K30 Pro.
Specification	55b Cobalt	Redmi K30 Pro
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	83.4 cm2	107.4 cm2
Screen format	16:9 (height:width)	20:9 (height:width)
Screen to body ratio	68.1%	87.2%
PPI /points per inch/	267 PPI	395 PPI
Screen protection	Unknown	Corning Gorilla Glass 5

Camera and Video

Camera and Video — specifications for 55b Cobalt, Redmi K30 Pro.
Specification	55b Cobalt	Redmi K30 Pro
Rear camera, main	13 MP Single	64 MP Quad
Camera specs	13 MP AF	64 MP 26mm (wide) 1/1.72'' 0.8µm PDAF -5 MP 50mm (telephoto macro) AF -13 MP 13mm (ultrawide) -2 MP (depth)
Functions	Dual-LED flash HDR panorama	HDR
Video	720p@30fps	1080p@30fps
Front camera, selfie	2 MP Single	20 MP Single
Specifications	2 MP	Motorized pop-up 20 MP (wide) 1/3.4'' 0.8µm

Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for 55b Cobalt, Redmi K30 Pro.
Specification	55b Cobalt	Redmi K30 Pro
Processor CPU	Quad-core 1.1 GHz Cortex-A7	Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
Graphics processor GPU	Adreno 304	Adreno 650
Antutu 7 score *	17741	Unknown

General specs

General specs — specifications for 55b Cobalt, Redmi K30 Pro.
Specification	55b Cobalt	Redmi K30 Pro
Release date	2017 January	2020 March 24
Colors	Gray	Grey Purple White Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	Unknown	390 EUR
Body build	Unknown	Glass front (Gorilla Glass 5) glass back (Gorilla Glass 5) aluminum frame

Communication and Connectivity

Communication and Connectivity — specifications for 55b Cobalt, Redmi K30 Pro.
Specification	55b Cobalt	Redmi K30 Pro
SIM card	Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM dual stand-by)	Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE 800 / 1800 / 2100 / 2600	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE band 1(2100) 3(1800) 5(850) 7(2600) 8(900) 34(2000) 38(2600) 39(1900) 40(2300) 41(2500) -5G - 5G band 1(2100) 41(2500) 78(3500) 79(4700); SA/NSA
Speed	HSPA 42.2/11.5 Mbps LTE Cat4 150/50 Mbps	HSPA 42.2/5.76 Mbps LTE-A; 5G
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n Wi-Fi Direct hotspot	Wi-Fi 802.11 a/b/g/n/ac/ax dual-band Wi-Fi Direct hotspot
GPS	Yes with A-GPS	Yes with dual-band A-GPS GLONASS BDS GALILEO QZSS
USB	microUSB 2.0	2.0 Type-C 1.0 reversible connector USB On-The-Go
Bluetooth	4.0 A2DP	5.1 A2DP LE aptX HD aptX Adaptive
Harmful irradiation	SAR EU - 0.98 W/kg (head) 1.76 W/kg (body)	Unknown

Music and Audio

Music and Audio — specifications for 55b Cobalt, Redmi K30 Pro.
Specification	55b Cobalt	Redmi K30 Pro
Radio	FM radio	Unknown
Others	Unknown	HDR10+ -DCI-P3 100% -500 nits typ. brightness (advertised) 24-bit/192kHz audio

Other features

Other features — specifications for 55b Cobalt, Redmi K30 Pro.
Specification	55b Cobalt	Redmi K30 Pro
Dop	Sensors Fingerprint (rear-mounted) Sensors Accelerometer proximity	Sensors Fingerprint (under display optical) accelerometer gyro proximity compass barometer Infrared port - Fast charging 33W 100% in 63 min (advertised) -USB Power Delivery -Quick Charge 4+

Archos 55b Cobalt vs Xiaomi Redmi K30 Pro