Asus PadFone Infinity vs Samsung Galaxy A51: 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

PadFone Infinity:

LCD

Galaxy A51:

OLED
Weight

PadFone Infinity: 31 g lighter

PadFone Infinity:

141 g

Galaxy A51:

172 g
Screen diagonal

PadFone Infinity: 1.5 in smaller diagonal

PadFone Infinity:

5 in

Galaxy A51:

6.5 in
Memory variants

At 64 GB storage

PadFone Infinity:

2 GB RAM

Galaxy A51:

4 GB RAM
Chipset

PadFone Infinity:

Qualcomm APQ8064T Snapdragon 600

Galaxy A51:

Exynos 9611 (10nm)
Rear camera layout

PadFone Infinity:

Single

Galaxy A51:

Quad

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. PadFone Infinity

Height:

143.5 mm
Width:

72.8 mm
Depth:

8.9 mm +1 mm versus Galaxy A51
2. Galaxy A51

Height:

158.5 mm +15 mm versus PadFone Infinity
Width:

73.6 mm
Depth:

7.9 mm

Weight

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

1. PadFone Infinity

141 g
2. Galaxy A51

172 g

+31 g versus PadFone Infinity

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. PadFone Infinity

Screen diagonal:

5 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

68.9 cm²
2. Galaxy A51

Screen diagonal:

6.5 in

Aspect ratio (height:width):

20:9

Approximate rectangular screen area:

102 cm²

Galaxy A51 has approximately 48% more rectangular screen area than PadFone Infinity.

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 PadFone Infinity, Galaxy A51, compared at the same storage capacity.
Storage	PadFone Infinity	Galaxy A51
32 GB	2 GB RAM	Not recorded
64 GB Recorded for all phones	2 GB RAM	4 GB RAM
128 GB	Not recorded	4 / 6 / 8 GB RAM Alternative RAM configurations

Practical features

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

1. PadFone Infinity

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

2. Galaxy A51

NFC:: Yes
Headphone jack:: Yes
Memory card support:: See details microSD · up to 1 TB (dedicated slot)

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. PadFone Infinity

2400 mAh
2. Galaxy A51

4000 mAh

+1600 mAh versus PadFone Infinity

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. PadFone Infinity2. Galaxy A51

Everyday essentials

Everyday essentials — specifications for PadFone Infinity, Galaxy A51.
Specification	PadFone Infinity	Galaxy A51
Dimensions (HxWxD)	143.5 Х 72.8 Х 8.9 mm	158.5 Х 73.6 Х 7.9 mm
Weight	141 g	172 g
Technology	Super IPS+ LCD	Super AMOLED
Screen size	5" inch	6.5" inch
Screen resolution	1080 x 1920 px	1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	32/64 GB 2 GB RAM	64GB 4GB RAM 128GB 4GB RAM 128GB 6GB RAM 128GB 8GB RAM
Memory card support	No	microSD up to 1 TB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.	2400 mAh Non-removable Li-Po	4000 mAh Non-removable Li-Po
Operating system OS	Android 4.1.2 (Jelly Bean) upgradable to 4.4.2 (KitKat)	Android 10.0; One UI 2
Chipset	Qualcomm APQ8064T Snapdragon 600	Exynos 9611 (10nm)
NFC	Yes	Yes
Headphone jack	Yes	Yes

Display

Display — specifications for PadFone Infinity, Galaxy A51.
Specification	PadFone Infinity	Galaxy A51
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	68.9 cm2	102.0 cm2
Screen format	16:9 (height:width)	20:9 (height:width)
Screen to body ratio	66.0%	87.4%
PPI /points per inch/	441 PPI	405 PPI
Screen protection	Corning Gorilla Glass	Corning Gorilla Glass 3

Camera and Video

Camera and Video — specifications for PadFone Infinity, Galaxy A51.
Specification	PadFone Infinity	Galaxy A51
Rear camera, main	13 MP Single	48 MP Quad
Camera specs	13 MP AF	48 MP f/2.0 26mm (wide) 1/2.0" 0.8µm PDAF -12 MP f/2.2 12mm (ultrawide) -5 MP f/2.4 25mm (macro) 1/5.0" 1.12µm -5 MP 1.12µm depth sensor
Functions	LED flash	HDR
Video	1080p@30fps	1080p@30fps
Front camera, selfie	2 MP Single	32 MP Single
Specifications	2 MP	32 MP f/2.2 26mm (wide) 1/2.8" 0.8µm

Performance

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

Performance — specifications for PadFone Infinity, Galaxy A51.
Specification	PadFone Infinity	Galaxy A51
Processor CPU	Quad-core 1.7 GHz Krait	Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Graphics processor GPU	Adreno 320	Mali-G72 MP3
Antutu 7 score *	25384	155326
Antutu 8 score *	Unknown	186846
GeekBench 5 Single Core *	Unknown	322
GeekBench 5 Multi-Core *	Unknown	1212

General specs

General specs — specifications for PadFone Infinity, Galaxy A51.
Specification	PadFone Infinity	Galaxy A51
Release date	2013 February	2019 December
Colors	Titanium Gray Champagne Gold Hot pink	Prism Crush Black White Blue Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	1000 EUR	$280
Battery life	Stand by time- Up to 410 h Talking time- Up to 19 h	Talking time- Up to 32 h (3G) Music play - Up to 87 h
Body build	Unknown	Glass front (Gorilla Glass 3) plastic back plastic frame

Communication and Connectivity

Communication and Connectivity — specifications for PadFone Infinity, Galaxy A51.
Specification	PadFone Infinity	Galaxy A51
SIM card	Nano-SIM	Single SIM (Nano-SIM)Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 900 / 2100 -4G - LTE band 1(2100) 3(1800) 7(2600) 20(800)	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE (unspecified)
Speed	HSPA 42.2/5.76 Mbps LTE Cat3 100/50 Mbps	HSPA LTE-A
GPRS	Class 10	Yes
Edge	Class 10	Yes
Wi-Fi	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct hotspot	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct hotspot
GPS	Yes with A-GPS GLONASS	Yes with A-GPS GLONASS GALILEO BDS
USB	microUSB 2.0 (SlimPort TV-out) USB Host	2.0 Type-C 1.0 reversible connector USB On-The-Go
Bluetooth	4.0 A2DP	5.0 A2DP LE
Harmful irradiation	Unknown	SAR - 0.80 W/kg (head) 0.67 W/kg (body) SAR EU - 0.37 W/kg (head) 1.59 W/kg (body)

Music and Audio

Music and Audio — specifications for PadFone Infinity, Galaxy A51.
Specification	PadFone Infinity	Galaxy A51
Radio	FM radio	FM radio
Others	Active noise cancellation with dedicated mic	Active noise cancellation with dedicated mic

Other features

Other features — specifications for PadFone Infinity, Galaxy A51.
Specification	PadFone Infinity	Galaxy A51
Dop	Sensors Accelerometer gyro proximity compass - Padfone Station with 10.1 inches IPS display 1920 x 1200 pixels 5000 mAh battery 1 MP front camera. 264.6 x 181.6 x 10.7mm 530g. - Also known as Asus PadFone Infinity (A80)	Sensors Fingerprint (under display optical) accelerometer gyro proximity compass - ANT+ - Fast battery charging 15W - Versions: SM-A515F/DSN (Global); SM-A515F/DS (LATAM); SM-A515F/DST (Brazil); SM-A515F/DSM (Russia); SM-A515F/N (Australia)

Asus PadFone Infinity vs Samsung Galaxy A51