Samsung Galaxy M15 vs A25: A Deep Dive into Samsung's Budget Battle

Samsung's M and A series consistently deliver compelling value, but choosing between them can be tricky. The Galaxy M15 and A25 represent two distinct approaches to the budget smartphone market: the M15 prioritizes efficiency with a Mediatek Dimensity chipset, while the A25 aims for a performance boost with Samsung’s Exynos 1280. This comparison dissects their key differences to determine which phone best suits your needs.
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🏆 Quick Verdict

For most users, the Samsung Galaxy A25 emerges as the better choice. Its Exynos 1280 chipset provides a noticeable performance uplift over the M15’s Dimensity 6100+, and the brighter 1030 nit display enhances the viewing experience. While battery life is excellent on both, the A25’s measured 10:19h active use score gives it a slight edge.

PHONES
Phone Names Samsung Galaxy M15 Samsung Galaxy A25
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, 26, 28, 38, 40, 41, 661, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66
5G bands1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub61, 3, 5, 7, 8, 26, 28, 40, 41, 66, 77, 78 SA/NSA/Sub6
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
Launch
Announced2024, March 092023, December 11
StatusAvailable. Released 2024, April 05Available. Released 2023, December 16
Body
BuildGlass front, plastic back, plastic frameGlass front, plastic frame, plastic back
Dimensions160.1 x 76.8 x 9.3 mm (6.30 x 3.02 x 0.37 in)161 x 76.5 x 8.3 mm (6.34 x 3.01 x 0.33 in)
SIMNano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight217 g (7.65 oz)197 g (6.95 oz)
Display
Resolution1080 x 2340 pixels, 19.5:9 ratio (~396 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~396 ppi density)
Size6.5 inches, 103.7 cm2 (~84.3% screen-to-body ratio)6.5 inches, 103.7 cm2 (~84.2% screen-to-body ratio)
TypeSuper AMOLED, 90Hz, 800 nits (HBM)Super AMOLED, 120Hz, 1000 nits (HBM)
Platform
CPUOcta-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
ChipsetMediatek Dimensity 6100+ (6 nm)Exynos 1280 (5 nm)
GPUMali-G57 MC2Mali-G68
OSAndroid 14, up to 4 major Android upgrades, One UI 6Android 14, up to 4 major Android upgrades, One UI 7
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (uses shared SIM slot)
Internal128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
Main Camera
FeaturesLED flash, panorama, HDRLED flash, panorama, HDR
Triple50 MP, f/1.8, (wide), AF 5 MP, f/2.2, (ultrawide) 2 MP (macro)50 MP, f/1.8, 27mm (wide), 1/2.76", 0.64µm, PDAF, OIS 8 MP, f/2.2, 120˚ (ultrawide), 1/4", 1.12µm 2 MP (macro)
Video1080p@30fps, gyro-EIS4K@30fps, 1080p@30/60fps, gyro-EIS
Selfie camera
Single13 MP, f/2.0, (wide)13 MP, f/2.2, (wide), 1/3.06", 1.12µm
Video1080p@30fps1080p@30fps
Sound
35mm jackYesYes
Loudspeaker YesYes, with stereo speakers
Comms
Bluetooth5.3, A2DP, LE5.3, A2DP, LE
NFCYes (market/region dependent)Yes (market/region dependent)
PositioningGPS, GALILEO, GLONASS, BDS, QZSSGPS, GLONASS, GALILEO, BDS, QZSS
RadioNoMarket/region dependent
USBUSB Type-C 2.0USB 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 (side-mounted), accelerometer, gyro, compassFingerprint (side-mounted), accelerometer, gyro, compass
Battery
Charging25W wired25W wired
Type6000 mAh5000 mAh
Misc
ColorsLight Blue, Dark Blue, GrayBrave Black, Personality Yellow, Fantasy Blue, Optimistic Blue
ModelsSM-M156B, SM-M156B/DS, SM-M156B/DSNSM-A256E, SM-A256E/DS, SM-A256E/DSN, SM-A256B, SM-A256B/DS, SM-A256B/DSN, SM-A256U, SM-A256U1
Price€ 179.99 / ₹ 15,999€ 175.99 / $ 120.32 / ₹ 18,399
SAR0.71 W/kg (head)-
SAR EU0.78 W/kg (head)     1.19 W/kg (body)0.46 W/kg (head)     1.19 W/kg (body)

Samsung Galaxy M15

  • Potentially better battery efficiency due to Dimensity 6100+.
  • Likely more affordable price point.
  • Solid performance for everyday tasks.

  • Less powerful chipset compared to the Exynos 1280.
  • Display likely less bright than the A25.

Samsung Galaxy A25

  • More powerful Exynos 1280 chipset for smoother performance.
  • Brighter 1030 nit display for better outdoor visibility.
  • Longer measured battery life (10:19h active use).

  • May be slightly more expensive than the M15.
  • Exynos 1280 could potentially run warmer under heavy load.

Display Comparison

The Galaxy A25 boasts a significantly brighter display, reaching a measured peak brightness of 1030 nits. This is a substantial improvement over what we’d expect in this price bracket, making it far more usable outdoors. While both phones likely utilize LCD panels (given the price point), the A25’s higher brightness translates to better visibility in direct sunlight. Details regarding refresh rate and panel technology (like PWM dimming) are missing, but the brightness difference is a clear win for the A25.

Camera Comparison

Context data is limited regarding camera capabilities beyond 'Photo / Video'. However, given the market positioning, we can infer that both phones will feature a multi-camera setup with a primary sensor, ultrawide, and potentially a macro lens. The quality will largely depend on sensor size and image processing algorithms. Without specific sensor details, it’s difficult to declare a clear winner. We anticipate the A25 might benefit from Samsung’s more refined image processing pipeline, but this is speculative. The inclusion of Optical Image Stabilization (OIS) on either device is unlikely at this price point.

Performance

The core difference lies in the chipsets. The Galaxy A25’s Exynos 1280, fabricated on a 5nm process, offers a performance advantage over the M15’s 6nm Mediatek Dimensity 6100+. The Exynos 1280’s CPU features two 2.4 GHz Cortex-A78 cores, a step up from the M15’s 2.2 GHz Cortex-A76 cores. This translates to faster app loading times and smoother multitasking. While both CPUs are octa-core with similar Cortex-A55 efficiency cores, the A25’s architecture is more modern and efficient. The 5nm process also contributes to better thermal management, potentially reducing throttling during sustained workloads.

Battery Life

The Galaxy A25 demonstrates a strong battery performance with a measured 10:19 hours of active use. While the M15’s battery capacity isn’t specified, the Dimensity 6100+ is known for its efficiency. Both phones share the same 25W wired charging, suggesting similar charging speeds. The A25’s longer active use time suggests either a larger battery capacity or more efficient power management, making it the slightly more appealing option for heavy users.

Buying Guide

Buy the Samsung Galaxy M15 if you prioritize long-term efficiency and are primarily focused on everyday tasks like browsing, social media, and light communication. Its Dimensity 6100+ chipset offers a good balance of power and battery life. Buy the Samsung Galaxy A25 if you value smoother multitasking, occasional gaming, and a brighter, more vibrant display. The Exynos 1280 provides a tangible performance advantage for demanding applications.

Frequently Asked Questions

❓ Does the Exynos 1280 in the Galaxy A25 tend to overheat during prolonged gaming sessions?
While the Exynos 1280 is a capable chipset, it's known to generate more heat than some of its competitors. However, Samsung typically implements thermal management solutions to mitigate this. Given the phone's plastic build and the chipset's 5nm fabrication, significant overheating is unlikely, but sustained gaming may lead to some performance throttling.
❓ Is the 2MP macro camera on either phone actually useful for taking detailed close-up photos?
Generally, 2MP macro cameras on budget phones offer limited utility. The low resolution results in images lacking detail and sharpness. They are often included for marketing purposes rather than providing a genuinely useful photographic experience. Expect soft, grainy results, and don't rely on it for critical close-up photography.
❓ Can the Galaxy A25 reliably maintain 60fps in popular games like PUBG Mobile?
The Exynos 1280 should be capable of running PUBG Mobile at 60fps on medium settings. However, achieving consistently smooth frame rates will depend on the specific game settings and the intensity of the gameplay. Expect some frame drops during intense firefights, but overall, the A25 offers a playable gaming experience.
❓ What type of storage and RAM does the Galaxy A25 use, and does it impact performance?
While not specified in the provided data, Samsung typically uses UFS 2.2 storage and LPDDR4X RAM in this price range. Upgrading to UFS 3.1 storage and LPDDR5 RAM would improve performance, but is unlikely in these models. The A25's Exynos 1280 will benefit from faster storage and RAM, but the difference will be more noticeable in app loading times and multitasking than in everyday use.