Samsung Galaxy M55 vs A55: A Deep Dive into Samsung's Mid-Range Champions

Samsung's mid-range offerings are increasingly competitive, and the Galaxy M55 and A55 represent two compelling options. The M55 prioritizes processing power with a Snapdragon 7 Gen 1, while the A55 focuses on a refined experience with Samsung’s Exynos 1480 and a brighter display. This comparison dissects the key differences to determine which device best suits your needs.
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🏆 Quick Verdict

For the average user prioritizing all-around usability and a brighter, more vibrant display, the Samsung Galaxy A55 is the better choice. Its Exynos 1480 provides ample performance, and the 1010 nit display is significantly brighter than what's expected in this price bracket. However, power users who frequently game or multitask will find the Snapdragon 7 Gen 1 in the M55 more responsive.

PHONES
Phone Names Samsung Galaxy M55 Samsung Galaxy A55
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, 25, 26, 28, 38, 40, 41, 661, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 32, 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, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
Launch
Announced2024, March 282024, March 11
StatusAvailable. Released 2024, March 28Available. Released 2024, March 15
Body
Build-Glass front (Gorilla Glass Victus+), glass back (Gorilla Glass), aluminum frame
Dimensions163.9 x 76.5 x 7.8 mm (6.45 x 3.01 x 0.31 in)161.1 x 77.4 x 8.2 mm (6.34 x 3.05 x 0.32 in)
SIMNano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Weight180 g (6.35 oz)213 g (7.51 oz)
Display
Protection-Corning Gorilla Glass Victus+
Resolution1080 x 2400 pixels, 20:9 ratio (~393 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~390 ppi density)
Size6.7 inches, 108.4 cm2 (~86.4% screen-to-body ratio)6.6 inches, 106.9 cm2 (~85.8% screen-to-body ratio)
TypeSuper AMOLED+, 120Hz, 1000 nits (HBM)Super AMOLED, 120Hz, HDR10+, 1000 nits (HBM)
Platform
CPUOcta-core (1x2.4 GHz Cortex-A710 & 3x2.36 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510)Octa-core (4x2.75 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
ChipsetQualcomm SM7450-AB Snapdragon 7 Gen 1 (4 nm)Exynos 1480 (4 nm)
GPUAdreno 644Xclipse 530
OSAndroid 14, upgradable to Android 16, One UI 8.0Android 14, up to 4 major Android upgrades, One UI 6.1
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (uses shared SIM slot)
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
Main Camera
FeaturesLED flash, panorama, HDRLED flash, panorama, HDR
Triple50 MP, f/1.8, (wide), 1/1.56", 1.0µm, PDAF, OIS 8 MP, f/2.2, 123˚ (ultrawide) 2 MP (macro)50 MP, f/1.8, (wide), 1/1.56", 1.0µm, PDAF, OIS 12 MP, f/2.2, 123˚ (ultrawide), 1/3.06", 1.12µm 5 MP (macro)
Video4K@30fps, 1080p@30/60fps, gyro-EIS, OIS4K@30fps, 1080p@30/60fps, gyro-EIS
Selfie camera
Single50 MP, f/2.4, (wide)32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Video4K@30fps, 1080p@30/60fps4K@30fps, 1080p@30/60fps
Sound
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
Comms
Bluetooth5.2, A2DP, LE5.3, A2DP, LE
NFCYes (market/region dependent)Yes (market/region dependent)
PositioningGPS, GALILEO, GLONASS, BDS, QZSSGPS, GALILEO, GLONASS, BDS, QZSS
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, compass
Battery
Charging45W wired25W wired
Type5000 mAhLi-Ion 5000 mAh
Misc
ColorsDark Blue, Light GreenIceblue, Lilac, Navy, Lemon
ModelsSM-M556B, SM-M556B/DSSM-A556V, SM-A556B, SM-A556B/DS, SM-A556E, SM-A556E/DS, SM-A5560
Price€ 272.94 / $ 265.00 / £ 251.97 / ₹ 20,999$ 324.99 / £ 251.50 / € 319.99 / ₹ 23,998
SAR0.93 W/kg (head)-
SAR EU0.96 W/kg (head)     0.98 W/kg (body)0.68 W/kg (head)     1.04 W/kg (body)

Samsung Galaxy M55

  • More powerful Snapdragon 7 Gen 1 chipset
  • Faster 45W wired charging
  • Potentially better sustained performance for gaming

  • Likely dimmer display compared to the A55
  • Potentially shorter battery life in typical use

Samsung Galaxy A55

  • Brighter 1010 nit display for outdoor visibility
  • Longer battery life (13:27h active use)
  • Refined software experience

  • Less powerful Exynos 1480 chipset
  • Slower 25W wired charging

Display Comparison

The Galaxy A55 boasts a significantly brighter display, reaching a measured 1010 nits, making it far more usable outdoors in direct sunlight. While the M55’s display specs aren’t provided, it’s unlikely to match this peak brightness. The A55’s panel likely benefits from Samsung’s advancements in display technology, offering superior color accuracy and viewing angles. The absence of LTPO technology in either model suggests both utilize a standard refresh rate panel, potentially impacting power consumption during dynamic content.

Camera Comparison

Without detailed camera specifications, a direct comparison is challenging. However, given Samsung’s typical strategy, the A55 likely benefits from more refined image processing algorithms. Both phones likely feature a similar primary sensor resolution, but the A55 may have a wider aperture for improved low-light performance. The inclusion of Optical Image Stabilization (OIS) on the A55 would be a significant advantage, reducing blur in photos and videos. The 2MP macro cameras on both devices are likely to offer limited utility, serving primarily as filler specs.

Performance

The core difference lies in the chipsets. The Galaxy M55 utilizes the Qualcomm Snapdragon 7 Gen 1 (4nm), featuring a 1x2.4 GHz Cortex-A710 prime core and 3x2.36 GHz Cortex-A710 performance cores, alongside 4x1.8 GHz Cortex-A510 efficiency cores. The A55, conversely, employs the Exynos 1480 (4nm) with a 4x2.75 GHz Cortex-A78 configuration and 4x2.0 GHz Cortex-A55 cores. While the A55’s cores have a higher clock speed, the Snapdragon 7 Gen 1’s architecture, particularly the A710 cores, is generally more efficient and delivers better sustained performance. This translates to smoother gaming and faster app loading times on the M55. Both phones likely utilize LPDDR5 RAM, but the M55’s chipset is better equipped to handle thermal throttling under prolonged load.

Battery Life

The Galaxy A55 demonstrates a clear advantage in battery endurance, achieving 13:27h of active use. While the M55’s battery capacity isn’t specified, the A55’s longer runtime suggests a combination of efficient chipset and optimized software. The M55 compensates with faster 45W wired charging, potentially reducing 0-100% charge times compared to the A55’s 25W charging. However, the A55’s superior battery life may negate the need for rapid charging in many scenarios.

Buying Guide

Buy the Samsung Galaxy M55 if you need sustained performance for gaming or demanding applications and value a slightly faster charging experience. Its Snapdragon 7 Gen 1 chipset offers a noticeable edge in CPU-intensive tasks. Buy the Samsung Galaxy A55 if you prefer a brighter, more visually appealing display, longer battery life in typical use, and a more polished software experience, even if it means sacrificing some raw processing power.

Frequently Asked Questions

❓ Does the Exynos 1480 in the Galaxy A55 overheat during extended gaming sessions?
While the Exynos 1480 is a capable chip, it's not known for exceptional thermal performance. Expect some throttling during prolonged, graphically intensive gaming. However, Samsung's software optimizations should mitigate this to a degree, and the phone shouldn't become uncomfortably hot.
❓ Is the 45W charging on the Galaxy M55 significantly faster in real-world use than the A55's 25W?
Yes, 45W charging will noticeably reduce charge times. While a full 0-100% time isn't specified, expect the M55 to charge considerably faster, potentially adding several hours of use with just a short charging session. However, the A55's longer battery life may lessen the need for frequent top-ups.
❓ Will the Galaxy M55 handle demanding games like Genshin Impact or PUBG Mobile at high settings?
The Snapdragon 7 Gen 1 in the M55 is capable of running these games, but you may need to compromise on graphics settings to maintain a stable frame rate. Expect playable performance at medium to high settings, but don't anticipate consistently hitting 60fps on the highest configurations.
❓ How does the image processing differ between the Galaxy M55 and A55?
Samsung typically tunes its image processing algorithms differently between its A and M series. The A55 is likely to prioritize a more vibrant and saturated look, while the M55 might lean towards a more natural color profile. Both phones should produce good-quality images in well-lit conditions.