Samsung Galaxy Quantum 2 vs Google Pixel 5a 5G: A Detailed Comparison of Mid-Range Powerhouses

The Samsung Galaxy Quantum 2 and Google Pixel 5a 5G represent distinct approaches to the mid-range 5G smartphone market. The Quantum 2, leveraging the older but potent Snapdragon 855+, aims for near-flagship performance, while the Pixel 5a 5G focuses on a balanced experience with Google’s renowned camera software and efficient Snapdragon 765G chipset. This comparison dissects their key differences to help you choose the right device.
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🏆 Quick Verdict

For users prioritizing raw processing power and enhanced security features, the Samsung Galaxy Quantum 2 is the better choice. However, the Google Pixel 5a 5G delivers a more refined, all-around experience with excellent camera performance and comparable battery life, making it ideal for everyday users.

PHONES
Phone Names Samsung Galaxy Quantum 2 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, 17, 20, 26, 28, 38, 40, 41, 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 bands78 Sub61, 2, 5, 12, 25, 28, 41, 66, 71, 77, 78 SA/NSA/Sub6
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / HSPA / EVDO / LTE / 5G
 -CDMA2000 1xEV-DO
Launch
Announced2021, April 132021, August 17
StatusAvailable. Released 2021, April 23Available. Released 2021, August 26
Body
Build-Glass front (Gorilla Glass 3), aluminum frame, aluminum back
Dimensions161.9 x 73.8 x 8.1 mm (6.37 x 2.91 x 0.32 in)156.2 x 73.2 x 8.8 mm (6.15 x 2.88 x 0.35 in)
SIMNano-SIMNano-SIM + eSIM
Weight176 g (6.21 oz)183 g (6.46 oz)
 -IP67 dust/water resistant (up to 1m for 30 min)
Display
Protection-Corning Gorilla Glass 3
Resolution1440 x 3200 pixels, 20:9 ratio (~524 ppi density)1080 x 2400 pixels, 20:9 ratio (~415 ppi density)
Size6.7 inches, 108.4 cm2 (~90.7% screen-to-body ratio)6.34 inches, 97.0 cm2 (~84.9% screen-to-body ratio)
TypeDynamic AMOLED 2X, 120Hz, 1200 nits (peak)OLED, HDR
 120Hz@FHD / 60Hz@QHD refresh rateAlways-on display
Platform
CPUOcta-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver)
ChipsetQualcomm SM8150 Snapdragon 855+ (7 nm), QRNG security chipsetQualcomm SM7250 Snapdragon 765G 5G (7 nm)
GPUAdreno 640 (700 MHz)Adreno 620
OSAndroid 11, One UI 3.1Android 11, upgradable to Android 14
Memory
Card slotmicroSDXC (dedicated slot)No
Internal128GB 6GB RAM128GB 6GB RAM
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, panorama, HDRLED flash, Pixel Shift, Auto-HDR, panorama
Single-8 MP, f/2.0, 24mm (wide), 1.12µm
Triple64 MP, f/1.8, 26mm (wide), 1/1.7X", 0.8µm, PDAF, OIS 12 MP, f/2.2, 123˚ (ultrawide), 1.12µm 5 MP (macro)-
Video4K@30fps, 1080p@30/60/240fps; gyro-EIS4K@30/60fps, 1080p@30/60/120/240fps; gyro-EIS
Selfie camera
FeaturesHDRHDR
Single10 MP, f/2.2, (wide)8 MP, f/2.0, 24mm (wide), 1.12µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack NoYes
35mm jackNoYes
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE, aptX HD
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, GALILEO, QZSS, BDS
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C 3.1
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 (under display, ultrasonic), accelerometer, gyro, proximity, compassFingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer
Battery
Charging25W wired18W wired, PD2.0
TypeLi-Po 4500 mAhLi-Po 4680 mAh
Misc
ColorsBlack, White, VioletMostly Black
ModelsSM-A826SG1F8F, G4S1M
PriceAbout 520 EUR$ 189.00 / C$ 249.99
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 Quantum 2

  • Significantly more powerful Snapdragon 855+ processor
  • Faster 25W wired charging
  • Enhanced security with QRNG chipset

  • Older chipset architecture
  • Limited information on camera specifications

Google Pixel 5a 5G

  • Excellent camera performance and image processing
  • Long battery life with efficient Snapdragon 765G
  • Clean and streamlined Android experience

  • Less powerful processor compared to the Quantum 2
  • Slower 18W charging speed

Display Comparison

The Google Pixel 5a 5G boasts a display capable of reaching 861 nits of peak brightness, offering excellent visibility in outdoor conditions. While the Quantum 2’s display specifications are not provided, Samsung typically employs high-quality OLED panels. The Pixel 5a’s ‘infinite’ contrast ratio, typical of OLED technology, ensures deep blacks and vibrant colors. The lack of high refresh rate on either device is notable, focusing instead on power efficiency. The Pixel 5a’s brightness advantage is a key differentiator for outdoor usability.

Camera Comparison

The Pixel 5a 5G is renowned for its computational photography prowess, leveraging Google’s image processing algorithms. While specific sensor details for the Quantum 2 are unavailable, the Pixel 5a’s image processing excels in dynamic range and low-light performance. The absence of detailed camera specs for the Quantum 2 makes a direct sensor comparison difficult, but the Pixel 5a’s consistent image quality is a major strength. The Pixel 5a’s software optimizations likely compensate for any hardware limitations, delivering superior results for casual users.

Performance

The Samsung Galaxy Quantum 2’s Snapdragon 855+ chipset, built on a 7nm process, significantly outperforms the Pixel 5a 5G’s Snapdragon 765G (also 7nm) in raw CPU and GPU power. The 855+ features an octa-core configuration with a prime Kryo 485 core clocked at 2.96 GHz, compared to the 765G’s 2.4 GHz Kryo 475 Prime core. This translates to faster app loading times, smoother multitasking, and superior gaming performance on the Quantum 2. However, the 765G’s efficiency may result in better sustained performance under heavy load, mitigating thermal throttling. The Quantum 2 also includes a QRNG (Quantum Random Number Generator) security chipset, providing a hardware-based security layer not found in the Pixel 5a.

Battery Life

Both the Samsung Galaxy Quantum 2 and Google Pixel 5a 5G achieve an endurance rating of 122 hours, indicating comparable battery life under typical usage. However, the charging speeds differ significantly. The Quantum 2 supports 25W wired charging, while the Pixel 5a 5G is limited to 18W with PD2.0 support. This means the Quantum 2 can recharge faster, potentially offsetting any slight differences in battery capacity. The Pixel 5a’s efficiency, coupled with its software optimizations, contributes to its impressive endurance despite the slower charging speed.

Buying Guide

Buy the Samsung Galaxy Quantum 2 if you need a phone capable of handling demanding tasks like gaming or video editing, and if the integrated QRNG security chipset is a priority. Buy the Google Pixel 5a 5G if you prefer a streamlined Android experience, exceptional camera quality, and long-lasting battery life without sacrificing 5G connectivity. The Pixel 5a is the better option for those who value simplicity and consistent performance.

Frequently Asked Questions

❓ Does the Samsung Galaxy Quantum 2's QRNG chipset offer a noticeable security benefit for everyday users?
While the QRNG chipset provides a theoretically more secure random number generation for cryptographic tasks, the practical benefit for most users is minimal. It primarily enhances security for applications requiring high-grade randomness, such as secure payments or VPN connections. The standard pseudo-random number generators used in most smartphones are generally sufficient for typical use cases.
❓ How does the Snapdragon 765G in the Pixel 5a 5G handle graphically intensive games like PUBG or Call of Duty?
The Snapdragon 765G can run PUBG and Call of Duty Mobile, but you'll likely need to lower the graphics settings to achieve a consistently smooth frame rate. While it won't match the performance of the Snapdragon 855+ in the Quantum 2, the Pixel 5a 5G offers a playable experience, especially with Google’s software optimizations. Expect to prioritize frame rate over maximum visual fidelity.
❓ Is the 18W charging on the Pixel 5a 5G significantly slower than the 25W charging on the Quantum 2 in real-world use?
Yes, the 25W charging on the Quantum 2 will noticeably reduce charging times. While both phones offer comparable battery life, the Quantum 2 can go from 0-100% faster. Expect approximately 1.5-2 hours for a full charge on the Pixel 5a 5G, compared to around 1-1.5 hours on the Quantum 2.