Samsung Galaxy A3 (2017) vs T-Mobile Comet: 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.

Weight

Comet: 35.9 g lighter

Galaxy A3 (2017):

138 g

Comet:

102.1 g
Width

Comet: 10.3 mm narrower

Galaxy A3 (2017):

66.2 mm

Comet:

55.9 mm
Screen diagonal

Comet: 1.9 in smaller diagonal

Galaxy A3 (2017):

4.7 in

Comet:

2.8 in
Chipset

Galaxy A3 (2017):

Exynos 7870 Octa (14 nm)

Comet:

Qualcomm MSM7225 Snapdragon S1
Depth

Galaxy A3 (2017): 4.8 mm thinner

Galaxy A3 (2017):

7.9 mm

Comet:

12.7 mm
Height

Comet: 31.3 mm shorter

Galaxy A3 (2017):

135.4 mm

Comet:

104.1 mm

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. Galaxy A3 (2017)

Height:

135.4 mm +31.3 mm versus Comet
Width:

66.2 mm +10.3 mm versus Comet
Depth:

7.9 mm
2. Comet

Height:

104.1 mm
Width:

55.9 mm
Depth:

12.7 mm +4.8 mm versus Galaxy A3 (2017)

Weight

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

1. Galaxy A3 (2017)

138 g

+35.9 g versus Comet
2. Comet

102.1 g

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. Galaxy A3 (2017)

Screen diagonal:

4.7 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

60.9 cm²
2. Comet

Screen diagonal:

2.8 in

Aspect ratio (height:width):

4:3

Approximate rectangular screen area:

24.3 cm²

Galaxy A3 (2017) has approximately 150.8% more rectangular screen area than Comet.

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 Galaxy A3 (2017), Comet, compared at the same storage capacity.
Storage	Galaxy A3 (2017)	Comet
16 GB	2 GB RAM	Unknown

Practical features

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

1. Galaxy A3 (2017)

NFC:: Yes
Headphone jack:: Yes
Memory card support:: See details microSD · up to 256 GB (uses SIM 2 slot) - dual SIM model only

2. Comet

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: See details microSD · up to 32 GB (dedicated slot) · 2 GB included

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. Galaxy A3 (2017)

2350 mAh

+1150 mAh versus Comet
2. Comet

1200 mAh

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. Galaxy A3 (2017)2. Comet

Everyday essentials

Everyday essentials — specifications for Galaxy A3 (2017), Comet.
Specification	Galaxy A3 (2017)	Comet
Dimensions (HxWxD)	135.4 Х 66.2 Х 7.9 mm	104.1 Х 55.9 Х 12.7 mm
Weight	138 g	102.1 g
Technology	Super AMOLED	TFT
Screen size	4.7" inch	2.8" inch
Screen resolution	720 x 1280 px	240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	16 GB 2 GB RAM	Unknown
Memory card support	microSD up to 256 GB (uses SIM 2 slot) - dual SIM model only	microSD up to 32 GB (dedicated slot) 2 GB included
Battery Capacity is not battery life. No endurance test is implied.	2350 mAh Non-removable Li-Ion	1200 mAh Removable Li-Ion
Operating system OS	Android 6.0.1 (Marshmallow) upgradable to Android 8.0 (Oreo)	Android 2.2 (Froyo)
Chipset	Exynos 7870 Octa (14 nm)	Qualcomm MSM7225 Snapdragon S1
NFC	Yes	Unknown
Headphone jack	Yes	Yes

Display

Display — specifications for Galaxy A3 (2017), Comet.
Specification	Galaxy A3 (2017)	Comet
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	256K
Screen area	60.9 cm2	24.3 cm2
Screen format	16:9 (height:width)	4:3 (height:width)
Screen to body ratio	67.9%	41.7%
PPI /points per inch/	312 PPI	143 PPI
Screen protection	Corning Gorilla Glass 4	Unknown

Camera and Video

Camera and Video — specifications for Galaxy A3 (2017), Comet.
Specification	Galaxy A3 (2017)	Comet
Rear camera, main	13 MP Single	3.15 MP Single
Camera specs	13 MP 27mm (wide) AF f/1.9	3.15 MP
Functions	LED flash panorama	Unknown
Video	1080p@30fps	CIF
Front camera, selfie	8 MP Single	0 MP,
Specifications	8 MP f/1.9 24mm (wide)	Unknown

Performance

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

Performance — specifications for Galaxy A3 (2017), Comet.
Specification	Galaxy A3 (2017)	Comet
Processor CPU	Octa-core 1.6 GHz Cortex-A53	528 MHz ARM 11
Graphics processor GPU	Mali-T830 MP1	No
Antutu 7 score *	45152	Unknown
GeekBench 4 Single Core *	705	Unknown
GeekBench 4 Multi-Core *	3430	Unknown
GeekBench 4 RenderScript *	2283	Unknown
GeekBench 4 Battery *	2530	Unknown

General specs

General specs — specifications for Galaxy A3 (2017), Comet.
Specification	Galaxy A3 (2017)	Comet
Release date	2017 January	2010 November
Colors	Black Sky Gold Sand Blue Mist Peach Cloud	Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	220 EUR	150 EUR
Battery life	Talking time- Up to 17 h (3G) Music play - Up to 55 h	Stand by time- Up to 288 h Talking time- Up to 9 h
Body build	Front/back glass (Gorilla Glass 4) aluminum frame	Unknown

Communication and Connectivity

Communication and Connectivity — specifications for Galaxy A3 (2017), Comet.
Specification	Galaxy A3 (2017)	Comet
SIM card	Single SIM (Nano-SIM)Hybrid Dual SIM (Nano-SIM dual stand-by)	Mini-SIM
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100) 2(1900) 3(1800) 5(850) 7(2600) 8(900) 20(800) 40(2300)	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed	HSPA 42.2/5.76 Mbps LTE-A (2CA) Cat6 300/50 Mbps	HSPA 7.2/0.384 Mbps
GPRS	Yes	Class 10
Edge	Yes	Class 10
Wi-Fi	Wi-Fi 802.11 a/b/g/n/ac dual-band WiFi Direct hotspot	Wi-Fi 802.11 b/g/n hotspot
GPS	Yes with A-GPS GLONASS	Yes with A-GPS
USB	2.0 Type-C 1.0 reversible connector	microUSB 2.0
Bluetooth	4.2 A2DP LE	2.0 A2DP
Harmful irradiation	SAR EU - 0.35 W/kg (head) 1.38 W/kg (body)	Unknown

Music and Audio

Music and Audio — specifications for Galaxy A3 (2017), Comet.
Specification	Galaxy A3 (2017)	Comet
Radio	FM radio	FM radio
Others	Always-on display Active noise cancellation with dedicated mic	Unknown

Other features

Other features — specifications for Galaxy A3 (2017), Comet.
Specification	Galaxy A3 (2017)	Comet
Dop	Sensors Fingerprint (front-mounted) accelerometer gyro proximity compass barometer - ANT+ - Samsung Pay -IP68 dust/water proof (up to 1.5m for 30 mins) - Versions: A320FL (Europe); A320F (UAE TUR); A320F/DS (Global Dual-SIM); A320Y/DS (LATAM IDN THA); A320Y (NZL MEX). Also known as Samsung Galaxy A3 (2017) Duos with dual-SIM card slots	Sensors Accelerometer MP3/WMA/eAAC+ player -MP4/H.264 player -Organizer -Photo viewer/editor -Voice memo/dial/commands -Predictive text input (Swype) For T-Mobile

Samsung Galaxy A3 (2017) vs T-Mobile Comet