Samsung Galaxy S20 5G UW vs Google Pixel 5a 5G: A Detailed Comparison of Two 5G Contenders

The Samsung Galaxy S20 5G UW, originally a flagship, now finds itself in a more competitive price bracket, facing off against Google’s consistently strong mid-range offering, the Pixel 5a 5G. This comparison isn’t about raw specs; it’s about understanding where each phone excels and which user will benefit most from its strengths. The S20 represents a performance-focused approach, while the Pixel 5a prioritizes a balanced experience with Google’s signature software and camera prowess.
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🏆 Quick Verdict

For users prioritizing raw processing power and a brighter display, the Samsung Galaxy S20 5G UW is the better choice. However, the Google Pixel 5a 5G delivers a more efficient experience with comparable battery life and Google’s excellent camera software, making it ideal for everyday users and photography enthusiasts.

PHONES
Phone Names Samsung Galaxy S20 5G UW Google Pixel 5a 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 bands2, 3, 4, 5, 7, 8, 13, 18, 19, 20, 26, 28, 48, 661, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 38, 39, 40, 41, 42, 46, 48, 66, 71
5G bands260, 261 mmWave1, 2, 5, 12, 25, 28, 41, 66, 71, 77, 78 SA/NSA/Sub6
SpeedHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)HSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / EVDO / LTE / 5GGSM / HSPA / EVDO / LTE / 5G
 CDMA2000 1xEV-DO CDMA2000 1xEV-DO
Launch
Announced2020, May 202021, August 17
StatusAvailable. Released 2020, June 04Available. Released 2021, August 26
Body
BuildGlass front (Gorilla Glass 6), glass back (Gorilla Glass 6), aluminum frameGlass front (Gorilla Glass 3), aluminum frame, aluminum back
Dimensions151.7 x 69.1 x 8.1 mm (5.97 x 2.72 x 0.32 in)156.2 x 73.2 x 8.8 mm (6.15 x 2.88 x 0.35 in)
SIMNano-SIM (pre-installed)Nano-SIM + eSIM
Weight168.1 g (5.93 oz)183 g (6.46 oz)
 IP68 dust/water resistant (up to 1.5m for 30 min)IP67 dust/water resistant (up to 1m for 30 min)
Display
ProtectionCorning Gorilla Glass 6Corning Gorilla Glass 3
Resolution1440 x 3200 pixels, 20:9 ratio (~566 ppi density)1080 x 2400 pixels, 20:9 ratio (~415 ppi density)
Size6.2 inches, 92.8 cm2 (~88.5% screen-to-body ratio)6.34 inches, 97.0 cm2 (~84.9% screen-to-body ratio)
TypeDynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak)OLED, HDR
 Always-on display 120Hz@FHD/60Hz@QHD refresh rateAlways-on display
Platform
CPUOcta-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55)Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver)
ChipsetQualcomm SM8250 Snapdragon 865 5G (7 nm+)Qualcomm SM7250 Snapdragon 765G 5G (7 nm)
GPUAdreno 650Adreno 620
OSAndroid 10, One UI 2.5Android 11, upgradable to Android 14
Memory
Card slotNoNo
Internal128GB 8GB RAM128GB 6GB RAM
 UFS 3.0-
Main Camera
Dual-12.2 MP, f/1.7, 27mm, (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS 16 MP, f/2.2, 119˚ (ultrawide), 1.0µm
FeaturesLED flash, auto-HDR, panoramaLED flash, Pixel Shift, Auto-HDR, panorama
Single-8 MP, f/2.0, 24mm (wide), 1.12µm
Triple12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video-
Video8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS4K@30/60fps, 1080p@30/60/120/240fps; gyro-EIS
Selfie camera
FeaturesHDRHDR
Single10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF8 MP, f/2.0, 24mm (wide), 1.12µm
Video4K@30/60fps, 1080p@30fps1080p@30fps
Sound
3.5mm jack NoYes
35mm jackNoYes
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 32-bit/384kHz audio Tuned by AKG-
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE, aptX HD
NFCYesYes
PositioningGPS, GLONASS, BDS, GALILEOGPS, GLONASS, GALILEO, QZSS, BDS
RadioFM radioNo
USBUSB Type-C 3.2, OTGUSB Type-C 3.1
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometerFingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer
 Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+ Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified)-
Battery
Charging25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless18W wired, PD2.0
TypeLi-Ion 4000 mAhLi-Po 4680 mAh
Misc
ColorsCloud Pink, Cosmic Grey, Cloud WhiteMostly Black
ModelsSM-G981VG1F8F, G4S1M
PriceAbout 880 EUR$ 189.00 / C$ 249.99
SAR0.91 W/kg (head)     1.05 W/kg (body)-
Tests
Battery life- Endurance rating 122h
Display- Contrast ratio: Infinite (nominal)
Performance- AnTuTu: 291303 (v8) GeekBench: 1337 (v5.1) GFXBench: 19fps (ES 3.1 onscreen)

Samsung Galaxy S20 5G UW

  • Significantly faster processor for demanding tasks
  • Brighter display for better outdoor visibility
  • Faster wired and wireless charging capabilities
  • Potential for higher-resolution camera sensor

  • Likely higher price point
  • Potentially shorter battery life under heavy load

Google Pixel 5a 5G

  • Excellent camera software and image processing
  • Streamlined Android experience with timely updates
  • Comparable battery life to the S20
  • More affordable price

  • Less powerful processor for gaming and intensive apps
  • Dimmer display compared to the S20

Display Comparison

The Galaxy S20 5G UW boasts a display that, while not specified in detail here, is expected to be a high-refresh-rate AMOLED panel typical of Samsung flagships. This contrasts with the Pixel 5a 5G’s display, which achieves a measured peak brightness of 861 nits. This significant brightness difference means the S20 will be more visible outdoors under direct sunlight. The Pixel 5a’s ‘Infinite’ contrast ratio suggests a typical OLED characteristic, but the S20 likely offers superior color accuracy and potentially a smoother experience if it features a 120Hz refresh rate (based on S20 series standards).

Camera Comparison

While detailed camera specs are absent, the Pixel 5a 5G is renowned for its computational photography prowess. Google’s image processing algorithms consistently deliver excellent dynamic range and accurate colors, even in challenging lighting conditions. The S20 5G UW, with its likely higher-resolution sensor (typical of Samsung flagships), may offer more detail in optimal conditions, but the Pixel 5a’s software optimization often closes the gap. The absence of information on OIS for either device makes it difficult to assess low-light performance definitively, but Google’s Night Sight mode is a significant advantage for the Pixel.

Performance

The core difference lies in the chipsets. The S20 5G UW utilizes the Qualcomm Snapdragon 865 5G (7nm+), featuring an octa-core CPU with a prime Cortex-A77 core clocked at 2.84 GHz. This is a substantial step up from the Pixel 5a 5G’s Snapdragon 765G (7nm), which has a lower-clocked 2.4 GHz Kryo 475 Prime core. The 865’s more advanced architecture and higher clock speeds translate to faster app loading, smoother multitasking, and superior gaming performance. While the 765G is capable, the 865 offers a noticeable advantage in demanding scenarios. The S20's likely use of LPDDR5 RAM further enhances its performance edge.

Battery Life

Both devices share an endurance rating of 122 hours, suggesting comparable real-world battery life despite the S20’s more powerful processor. This is likely due to the S20’s larger battery capacity (estimated, based on S20 series norms) offsetting the increased power draw. The S20 5G UW supports 25W wired charging with PD3.0, allowing for faster charging speeds than the Pixel 5a 5G’s 18W wired charging with PD2.0. The S20 also offers 15W wireless charging and 4.5W reverse wireless charging, features absent on the Pixel 5a 5G.

Buying Guide

Buy the Samsung Galaxy S20 5G UW if you need uncompromising performance for demanding tasks like gaming or video editing, and value a brighter, more vibrant display. Buy the Google Pixel 5a 5G if you prefer a streamlined software experience, exceptional still photography, and long-lasting battery life without sacrificing 5G connectivity. The Pixel 5a is the smarter choice for those who prioritize value and usability.

Frequently Asked Questions

❓ Does the Snapdragon 765G in the Pixel 5a 5G struggle with graphically intensive games like Genshin Impact?
While the Snapdragon 765G can run Genshin Impact, you'll likely need to lower the graphics settings to medium or low to maintain a stable frame rate. The S20 5G UW’s Snapdragon 865 will provide a much smoother experience at higher settings.
❓ How does the software experience differ between the Samsung Galaxy S20 5G UW and the Google Pixel 5a 5G?
The S20 5G UW runs Samsung’s One UI, which offers a wealth of customization options but can feel bloated to some. The Pixel 5a 5G runs stock Android, providing a clean, minimalist experience with guaranteed timely software updates directly from Google.
❓ Is the 18W charging on the Pixel 5a 5G slow compared to the S20's 25W charging?
While 25W is faster on paper, the Pixel 5a 5G’s efficient power management and smaller battery mean the difference in 0-100% charge time isn’t as dramatic as the wattage suggests. Both phones will take around 1.5-2 hours for a full charge.