Infinix S5 Pro (48+40) vs. Samsung Galaxy A51 5G UW: A Detailed Comparison

The Infinix S5 Pro (48+40) and the Samsung Galaxy A51 5G UW represent different approaches to the mid-range smartphone market. The S5 Pro, likely an older model, focuses on affordability, while the A51 5G UW brings 5G connectivity and a more modern chipset to the table. This comparison dissects their key differences to determine which device offers the best value for today's user.
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🏆 Quick Verdict

For the average user, the Samsung Galaxy A51 5G UW is the clear winner. Its Snapdragon 765G chipset delivers significantly better performance and 5G capabilities, justifying the likely price premium over the Infinix S5 Pro's aging Helio P35. While the S5 Pro may appeal to extremely budget-conscious buyers, the A51 5G UW provides a more future-proof and enjoyable experience.

PHONES
Phone Names Infinix S5 Pro (48+40) Samsung Galaxy A51 5G UW
Network
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands1, 3, 7, 8, 20, 282, 4, 5, 13, 66
5G bands-260, 261 mmWave
SpeedHSPA 42.2/5.76 Mbps, LTE Cat4 150/50 MbpsHSPA, LTE, 5G
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE / 5G
Launch
Announced2020, March 062020, August 14
StatusAvailable. Released 2020, AprilAvailable. Released 2020, August 14
Body
BuildGlass front, plastic back, plastic frameGlass front (Gorilla Glass 3), plastic back, aluminum frame
Dimensions162.5 x 76.9 x 9 mm (6.40 x 3.03 x 0.35 in)158.8 x 73.4 x 8.6 mm (6.25 x 2.89 x 0.34 in)
SIMDual SIM (Nano-SIM, dual stand-by)Nano-SIM (pre-installed)
Weight195 g (6.88 oz)188.8 g (6.67 oz)
Display
Protection-Corning Gorilla Glass 3
Resolution1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
Size6.53 inches, 104.7 cm2 (~83.8% screen-to-body ratio)6.5 inches, 102.0 cm2 (~87.5% screen-to-body ratio)
TypeIPS LCDSuper AMOLED
Platform
CPUOcta-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver)
ChipsetMediatek MT6765 Helio P35 (12nm)Qualcomm SM7250 Snapdragon 765G 5G (7 nm)
GPUPowerVR GE8320Adreno 620
OSAndroid 10Android 10, One UI 2
Memory
Card slotmicroSDXC (dedicated slot)microSDXC (uses shared SIM slot)
Internal64GB 4GB RAM, 128GB 6GB RAM128GB 6GB RAM
 eMMC 5.1UFS 2.1
Main Camera
FeaturesDual-LED flash, HDR, panoramaLED flash, panorama, HDR
Quad-48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP (macro) Auxiliary lens
Single-5 MP, AF
Triple48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 2 MP, (depth) QVGA low light camera sensor-
Video1080p@30fps4K@30fps, 1080p@30/120fps; gyro-EIS
Selfie camera
Features-HDR
SingleMotorized pop-up 40 MP, (wide)32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
Video1080p@30fps4K@30fps, 1080p@30fps
Sound
3.5mm jack YesYes
35mm jack-Yes
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
NFCNoYes
PositioningGPSGPS, GLONASS, GALILEO, BDS
RadioFM radioFM radio, RDS, recording
USBmicroUSB 2.0, OTGUSB Type-C 2.0, OTG
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 (rear-mounted), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
 -ANT+
Battery
Charging-15W wired
Stand-by-Up to 672 h
Talk time-Up to 5 h
TypeLi-Po 4000 mAh, non-removableLi-Po 4500 mAh
Misc
ColorsNebula Black, Quetzal Cyan, VioletPrism Bricks Blue
ModelsX660SM-A516V
Price-About 470 EUR
SAR0.79 W/kg (head)     0.90 W/kg (body)     0.70 W/kg (head)     1.25 W/kg (body)    
SAR EU-0.59 W/kg (head)     1.32 W/kg (body)

Infinix S5 Pro (48+40)

  • Potentially lower price point
  • May offer a larger battery capacity (speculation)
  • Simple and straightforward user experience

  • Outdated Helio P35 chipset
  • No 5G connectivity
  • Inferior camera performance
  • Slower app loading and multitasking

Samsung Galaxy A51 5G UW

  • Powerful Snapdragon 765G chipset
  • 5G connectivity for faster data speeds
  • Superior camera quality and image processing
  • Smoother multitasking and gaming experience

  • Likely higher price point
  • 15W charging is relatively slow
  • May have a smaller battery capacity than the S5 Pro (speculation)

Display Comparison

Context data lacks display specifics for both devices. However, given the A51 5G UW's positioning, it likely features a Super AMOLED panel, known for vibrant colors and deep blacks. The S5 Pro, being a budget device, likely uses an IPS LCD. The A51 5G UW's panel is also likely to have a higher peak brightness and potentially a higher refresh rate, enhancing outdoor visibility and smoothness. Bezels are also likely thinner on the A51 5G UW, contributing to a more modern aesthetic.

Camera Comparison

While both phones boast a 48MP main camera, the image quality will likely differ significantly. The A51 5G UW benefits from Qualcomm’s image signal processor (ISP) within the Snapdragon 765G, offering superior noise reduction and dynamic range. The S5 Pro’s Helio P35 ISP is less capable. The '40' in the S5 Pro's name likely refers to a secondary sensor, potentially for depth sensing, but its impact on overall image quality will be minimal. The A51 5G UW likely has better low-light performance and more advanced image processing algorithms. The S5 Pro's camera is adequate for basic photography, but the A51 5G UW offers a more versatile and higher-quality camera experience.

Performance

The performance gap between these two devices is substantial. The Samsung Galaxy A51 5G UW's Qualcomm Snapdragon 765G (7nm) is built on a far more advanced process node than the Infinix S5 Pro's MediaTek Helio P35 (12nm). This translates to significantly improved power efficiency and thermal management. The Snapdragon 765G’s Kryo CPU architecture (1x2.4 GHz Prime, 1x2.2 GHz Gold, 6x1.8 GHz Silver) is also more sophisticated than the S5 Pro’s Cortex-A53 based octa-core setup (4x2.3 GHz & 4x1.8 GHz). Users who engage in gaming, video editing, or heavy multitasking will experience a dramatically smoother experience on the A51 5G UW. The 765G also unlocks 5G connectivity, a feature absent in the S5 Pro.

Battery Life

Context data only provides charging wattage for the A51 5G UW (15W). Battery capacity is unknown for both. However, the Snapdragon 765G’s superior power efficiency means the A51 5G UW will likely deliver comparable or better battery life despite potentially having a similar or smaller battery capacity than the S5 Pro. The 15W charging on the A51 5G UW will provide a reasonable, though not exceptionally fast, recharge time. The S5 Pro, with its less efficient chipset, will likely require more frequent charging.

Buying Guide

Buy the Infinix S5 Pro (48+40) if you absolutely need the lowest possible price point and basic smartphone functionality is sufficient. You'll be sacrificing performance and future-proofing. Buy the Samsung Galaxy A51 5G UW if you prioritize 5G connectivity, smoother multitasking, better gaming performance, and a more refined user experience, even if it means spending a bit more.

Frequently Asked Questions

❓ Will the Snapdragon 765G in the A51 5G UW handle demanding games like PUBG Mobile smoothly?
Yes, the Snapdragon 765G is capable of running PUBG Mobile at high settings with stable frame rates. While it's not a flagship-level gaming chip, it provides a significantly better gaming experience than the Helio P35 in the S5 Pro, which may struggle with consistent performance even at lower settings.
❓ Is the 5G connectivity on the A51 5G UW actually useful, or is it just a marketing gimmick?
The usefulness of 5G depends on your location and carrier coverage. However, if you live in an area with 5G access, you'll experience significantly faster download and upload speeds compared to 4G LTE. This is particularly beneficial for streaming high-resolution video, downloading large files, and online gaming. The S5 Pro lacks 5G entirely.
❓ How much of a difference will the 7nm process node of the Snapdragon 765G make in real-world usage compared to the 12nm Helio P35?
The 7nm process node is a major advantage for the Snapdragon 765G. It allows for greater transistor density and improved power efficiency. This translates to less heat generation, reduced throttling during sustained tasks, and ultimately, longer battery life and more consistent performance compared to the 12nm Helio P35.