Samsung Galaxy M42 5G vs A42 5G: Which Budget 5G Phone Reigns Supreme?

Samsung's A and M series have blurred the lines between mid-range and budget offerings, and the Galaxy M42 5G and A42 5G exemplify this. Both devices target the increasingly competitive sub-$300 5G market, but subtle differences in their specifications could make one a better fit for your needs. This comparison dives deep into those nuances.
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🏆 Quick Verdict

For most users, the Samsung Galaxy M42 5G emerges as the slightly better value. While both share the same Snapdragon 750G chipset and 15W charging, the M42 5G's focus on core specs and potentially optimized software makes it a more compelling choice for performance-minded buyers.

PHONES
Phone Names Samsung Galaxy M42 5G Samsung Galaxy A42 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40, 411, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40, 41 - Europe
5G bands1, 3, 5, 7, 8, 28, 40, 41, 78 SA/NSA/Sub61, 3, 5, 7, 8, 28, 40, 41, 78 SA/NSA/Sub6 - Europe
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
Launch
Announced2021, April 282020, September 02
StatusAvailable. Released 2021, May 01Available. Released 2020, November 11
Body
Dimensions164.4 x 75.9 x 8.6 mm (6.47 x 2.99 x 0.34 in)164.4 x 75.9 x 8.6 mm (6.47 x 2.99 x 0.34 in)
SIMNano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight190 g (6.70 oz)193 g (6.81 oz)
Display
Resolution720 x 1600 pixels, 20:9 ratio (~266 ppi density)720 x 1600 pixels, 20:9 ratio (~266 ppi density)
Size6.6 inches, 105.2 cm2 (~84.3% screen-to-body ratio)6.6 inches, 105.2 cm2 (~84.3% screen-to-body ratio)
TypeSuper AMOLEDSuper AMOLED
Platform
CPUOcta-core (2x2.2 GHz Kryo 570 & 6x1.8 GHz Kryo 570)Octa-core (2x2.2 GHz Kryo 570 & 6x1.8 GHz Kryo 570)
ChipsetQualcomm SM7225 Snapdragon 750G 5G (8 nm)Qualcomm SM7225 Snapdragon 750 5G (8 nm)
GPUAdreno 619Adreno 619
OSAndroid 11, upgradable to Android 13, One UI 5.1Android 10, upgradable to Android 13, One UI 5
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (uses shared SIM slot)
Internal128GB 6GB RAM, 128GB 8GB RAM128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
 UFS 2.1-
Main Camera
FeaturesLED flash, panorama, HDRLED flash, panorama, HDR
Quad48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 123˚ (ultrawide) 5 MP (macro) Auxiliary lens48 MP, f/1.8, 24mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm, 123˚ (ultrawide), 1/3.94", 0.8µm 5 MP (macro) Auxiliary lens
Single20 MP, f/2.2, (wide)-
Video4K@30fps, 1080p@30fps, 720p@480fps4K@30fps, 1080p@30fps, 720p@480fps
Selfie camera
FeaturesHDRHDR
Single20 MP, f/2.2, (wide)20 MP, f/2.2, 25mm (wide), 1/2.78", 1.0µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, GALILEO, BDS
RadioFM radioFM radio
USBUSB Type-C 2.0, OTGUSB Type-C 2.0
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
 Virtual proximity sensing-
Battery
Charging15W wired15W wired
TypeLi-Po 5000 mAhLi-Po 5000 mAh
Misc
ColorsPrism Dot Black, Prism Dot GrayPrism Dot Black, Prism Dot White, Prism Dot Gray
ModelsSM-M426B, SM-M426B/DSSM-A426B, SM-A426B/DS, SM-A4260, SM-A426U, SM-A426U1, SM-A426N
PriceAbout 220 EUR€ 279.99 / £ 139.10
SAR0.69 W/kg (head)-
SAR EU-1.15 W/kg (head)     1.33 W/kg (body)
Tests
Battery life-Endurance rating 144h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -30.1 LUFS (Below average)
Performance- AnTuTu: 324686 (v8) GeekBench: 1910 (v5.1) GFXBench: 33fps (ES 3.1 onscreen)

Samsung Galaxy M42 5G

  • Potentially better performance optimization due to focus on core specs.
  • Shares the same powerful Snapdragon 750G chipset as the A42 5G.
  • Likely more affordable price point.

  • Display brightness likely lower than the A42 5G.
  • Limited detailed specifications available.

Samsung Galaxy A42 5G

  • Brighter display (570 nits) for better outdoor visibility.
  • Solid battery endurance rating of 144 hours.
  • Samsung's One UI software optimizations.

  • Shares the same Snapdragon 750G chipset as the M42 5G.
  • May be slightly more expensive than the M42 5G.

Display Comparison

The Samsung Galaxy A42 5G boasts a measured peak brightness of 570 nits, a significant advantage over any reported figures for the M42 5G. While both feature an 'Infinite' contrast ratio (typical for Samsung's AMOLED panels), the higher brightness of the A42 5G translates to better visibility in direct sunlight. The lack of detailed display specs for the M42 5G suggests a potentially less vibrant viewing experience, though both will benefit from the inherent contrast of AMOLED technology. The absence of refresh rate information for both devices indicates a standard 60Hz panel, which is common in this price bracket.

Camera Comparison

Both devices are listed as having 'Photo / Video' capabilities, lacking specific details. Without sensor size, aperture, or OIS information, a direct comparison is difficult. However, it's reasonable to assume both utilize similar camera modules given their price points. The inclusion of a 2MP macro camera on both is likely a marketing feature with limited practical utility. Image processing will be a key differentiator, with Samsung’s software potentially enhancing photos on the A42 5G, but without detailed specs, this remains speculative.

Performance

Both the Samsung Galaxy M42 5G and A42 5G are powered by the Qualcomm SM7225 Snapdragon 750G 5G (8 nm) chipset, featuring an octa-core CPU configuration with 2x2.2 GHz Kryo 570 prime cores and 6x1.8 GHz Kryo 570 efficiency cores. This means CPU performance will be virtually identical between the two. The real-world performance difference will likely come down to RAM management and software optimization within Samsung’s One UI. The 8nm process node ensures reasonable thermal efficiency, but sustained heavy workloads could still lead to throttling. The shared chipset means gaming performance will be comparable, though neither phone is positioned as a dedicated gaming device.

Battery Life

The Samsung Galaxy A42 5G has an endurance rating of 144 hours, indicating solid battery life. The M42 5G's battery capacity is not specified, but given its focus on core specs, it's likely optimized for efficiency. Both phones support 15W wired charging, which is relatively slow compared to modern fast-charging standards. A full 0-100% charge will likely take over two hours on both devices. The A42 5G’s endurance rating suggests a larger battery capacity or more efficient power management, providing a slight edge in longevity.

Buying Guide

Buy the Samsung Galaxy M42 5G if you prioritize raw performance and are looking for a device that can handle demanding apps and moderate gaming without significant compromise. Buy the Samsung Galaxy A42 5G if you value a slightly brighter display and are less concerned with squeezing every last bit of performance out of the chipset, potentially benefiting from Samsung's One UI optimizations.

Frequently Asked Questions

❓ Will the Snapdragon 750G in either phone handle demanding games like PUBG Mobile smoothly?
The Snapdragon 750G is capable of running PUBG Mobile at medium settings with stable frame rates. However, don't expect flagship-level performance. Both phones may experience some throttling during extended gaming sessions due to thermal limitations. Lowering graphics settings will improve performance and reduce heat.
❓ Is the 15W charging speed acceptable, or should I expect long charging times?
15W charging is relatively slow by today's standards. Expect a full charge from 0-100% to take over two hours. This is a compromise to keep the price down. If fast charging is a priority, you'll need to consider a different device.
❓ How does Samsung's One UI affect the performance of these phones?
Samsung's One UI is a feature-rich skin built on top of Android. While it offers many customization options, it can also be resource-intensive. Samsung has been optimizing One UI in recent versions, but it may still impact performance compared to a cleaner Android experience. The A42 5G may benefit from more refined One UI optimizations.