Samsung Galaxy S20 5G vs. Google Pixel 5a 5G: A Deep Dive into Performance and Value

The Samsung Galaxy S20 5G, originally a flagship contender, now finds itself in a more competitive price bracket. This puts it directly against the Google Pixel 5a 5G, a phone built on a philosophy of optimized software and efficient hardware. We’ll dissect these two 5G-enabled devices to determine which offers the best experience for today’s user.
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🏆 Quick Verdict

For the average user prioritizing consistent performance and a refined software experience, the Google Pixel 5a 5G emerges as the stronger choice. While the Galaxy S20 5G boasts a more powerful chipset on paper, the Pixel 5a 5G’s Snapdragon 765G delivers a smoother, more thermally stable experience, coupled with Google’s exceptional camera processing.

PHONES
Phone Names Samsung Galaxy S20 5G 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 bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G981B1, 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 bands1, 3, 5, 7, 8, 28, 40, 77, 78 SA/NSA/Sub6 - SM-G981B1, 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
 2, 5, 41, 66, 71 SA/NSA/Sub6 - SM-G981UCDMA2000 1xEV-DO
Launch
Announced2020, February 112021, August 17
StatusAvailable. Released 2020, March 06Available. 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 7.9 mm (5.97 x 2.72 x 0.31 in)156.2 x 73.2 x 8.8 mm (6.15 x 2.88 x 0.35 in)
SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIMNano-SIM + eSIM
Weight163 g (5.75 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 (~563 ppi density)1080 x 2400 pixels, 20:9 ratio (~415 ppi density)
Size6.2 inches, 93.8 cm2 (~89.5% 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 (2x2.73 GHz Mongoose M5 & 2x2.50 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55) - GlobalOcta-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55) - USAOcta-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver)
ChipsetExynos 990 (7 nm+) - GlobalQualcomm SM8250 Snapdragon 865 5G (7 nm+) - USAQualcomm SM7250 Snapdragon 765G 5G (7 nm)
GPUMali-G77 MP11 - GlobalAdreno 650 - USAAdreno 620
OSAndroid 10, upgradable to Android 13, One UI 5.1Android 11, upgradable to Android 14
Memory
Card slotmicroSDXC (uses shared SIM slot)No
Internal128GB 8GB RAM, 128GB 12GB 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 radio (Snapdragon model only; market/operator dependent)No
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
ColorsCosmic Grey, Cloud Blue, Cloud Pink, Cloud White, Aura RedMostly Black
ModelsSM-G981, SM-G981F, SM-G981F/DS, SM-G981B/DS, SM-G981U, SM-G981U1, SM-G981N, SM-G981B, SM-G9810, SM-G981W, SC-51A, SCG01G1F8F, G4S1M
Price$ 158.44 / £ 144.99 / € 272.39$ 189.00 / C$ 249.99
SAR1.07 W/kg (head)     1.03 W/kg (body)-
SAR EU0.38 W/kg (head)     1.52 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

  • Potentially higher peak performance with Snapdragon 865 variant
  • Faster wired charging (25W)
  • Likely higher refresh rate display

  • Potential for thermal throttling with Exynos 990
  • More power-hungry chipset
  • Samsung’s software can be bloated

Google Pixel 5a 5G

  • Excellent camera performance with Google’s software
  • Efficient Snapdragon 765G chipset
  • Guaranteed software updates from Google

  • Slower wired charging (18W)
  • Less powerful chipset compared to Snapdragon 865
  • Display brightness, while good, isn't class-leading

Display Comparison

The Pixel 5a 5G’s display achieves a measured peak brightness of 861 nits, providing excellent visibility outdoors. While the S20 5G’s display specs aren’t provided, Samsung historically utilizes high-quality AMOLED panels. However, the Pixel 5a 5G’s ‘infinite’ contrast ratio, typical of OLED technology, ensures deep blacks and vibrant colors. The S20 5G likely has a higher refresh rate, but the Pixel 5a 5G’s color accuracy and brightness are strong contenders, especially considering the price difference.

Camera Comparison

Both phones excel in camera performance, but approach it differently. The Pixel 5a 5G leverages Google’s computational photography prowess, delivering consistently excellent images with accurate colors and impressive dynamic range. While sensor sizes aren’t specified, the Pixel’s image processing is a significant advantage. The S20 5G likely has a more versatile camera system with potentially higher resolution sensors, but image quality is heavily reliant on Samsung’s processing, which can sometimes be over-saturated. The Pixel 5a 5G’s focus on software optimization provides a more reliable and user-friendly camera experience.

Performance

The Galaxy S20 5G’s chipset varies by region: the Exynos 990 (global) and Snapdragon 865 5G (USA). The Snapdragon 865, with its Cortex-A77 cores, offers a performance advantage over the Exynos 990’s Mongoose M5 cores. However, the Pixel 5a 5G’s Snapdragon 765G, while less powerful on paper, benefits from a more efficient 7nm process and Google’s software optimization. The S20 5G’s potential for throttling under sustained load is a concern, while the 765G in the Pixel 5a 5G maintains consistent performance. The S20 5G likely utilizes faster LPDDR5 RAM, but the Pixel 5a 5G’s optimized software mitigates the RAM speed difference.

Battery Life

Both the Galaxy S20 5G and Pixel 5a 5G achieve an endurance rating of 122 hours, suggesting similar real-world battery life despite differing capacities (not specified). The S20 5G supports 25W wired charging with PD3.0, offering faster charging speeds than the Pixel 5a 5G’s 18W wired charging with PD2.0. However, the S20 5G’s more power-hungry chipset and potential for throttling can negate the charging speed advantage. The Pixel 5a 5G’s efficient hardware and software contribute to consistent battery performance throughout the day.

Buying Guide

Buy the Samsung Galaxy S20 5G if you absolutely need the potential for peak performance in demanding tasks like video editing or graphically intensive gaming, and are willing to accept potential thermal throttling and shorter battery life. Buy the Google Pixel 5a 5G if you prioritize a consistently smooth experience, exceptional camera quality in all conditions, and long-term software support, all at a more reasonable price point.

Frequently Asked Questions

❓ Does the Exynos 990 in the Galaxy S20 5G overheat during extended gaming sessions?
Yes, the Exynos 990 variant of the Galaxy S20 5G is known to experience thermal throttling during prolonged, demanding tasks like gaming. This can lead to reduced performance and a less enjoyable gaming experience. The Snapdragon 865 variant fares better, but still isn't as thermally efficient as the Pixel 5a 5G's Snapdragon 765G.
❓ How does the Pixel 5a 5G’s camera perform in low-light conditions compared to the S20 5G?
The Pixel 5a 5G consistently outperforms the Galaxy S20 5G in low-light photography thanks to Google’s Night Sight mode and superior image processing algorithms. While the S20 5G can capture decent low-light photos, the Pixel 5a 5G delivers brighter, clearer, and more detailed images with less noise.
❓ Is the 18W charging on the Pixel 5a 5G slow compared to the S20 5G’s 25W charging?
While 25W is faster on paper, the Pixel 5a 5G’s more efficient chipset and software optimization mean the difference in real-world charging times isn’t as significant as it appears. Both phones offer all-day battery life, and the Pixel 5a 5G’s slower charging doesn’t feel like a major drawback.
❓ How long will the Pixel 5a 5G receive software and security updates?
Google guarantees at least 3 years of Android OS updates and 5 years of security updates for the Pixel 5a 5G, starting from its release date. This is a significant advantage over Samsung’s update policy, ensuring the Pixel 5a 5G remains secure and up-to-date for a longer period.