Samsung Galaxy Quantum 2 vs. Galaxy S20: A Detailed Comparison of Performance, Security, and Value
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🏆 Quick Verdict
For the average user, the Samsung Galaxy S20 offers a more well-rounded experience, primarily due to its superior display and broader feature set. However, the Quantum 2 presents a compelling value for security-conscious individuals, leveraging its unique QRNG chipset and capable Snapdragon 855+ processor.
| PHONES | ||
|---|---|---|
| Phone Names | Samsung Galaxy Quantum 2 | Samsung Galaxy S20 |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 |
| 5G bands | 78 Sub6 | - |
| Speed | HSPA, LTE, 5G | HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps |
| Technology | GSM / HSPA / LTE / 5G | GSM / CDMA / HSPA / EVDO / LTE |
| - | CDMA2000 1xEV-DO | |
| Launch | ||
|---|---|---|
| Announced | 2021, April 13 | 2020, February 11 |
| Status | Available. Released 2021, April 23 | Available. Released 2020, March 06 |
| Body | ||
|---|---|---|
| Build | - | Glass front (Gorilla Glass 6), glass back (Gorilla Glass 6), aluminum frame |
| Dimensions | 161.9 x 73.8 x 8.1 mm (6.37 x 2.91 x 0.32 in) | 151.7 x 69.1 x 7.9 mm (5.97 x 2.72 x 0.31 in) |
| SIM | Nano-SIM | · Nano-SIM + eSIM· Nano-SIM + Nano-SIM |
| Weight | 176 g (6.21 oz) | 163 g (5.75 oz) |
| - | IP68 dust/water resistant (up to 1.5m for 30 min) | |
| Display | ||
|---|---|---|
| Protection | - | Corning Gorilla Glass 6 |
| Resolution | 1440 x 3200 pixels, 20:9 ratio (~524 ppi density) | 1440 x 3200 pixels, 20:9 ratio (~563 ppi density) |
| Size | 6.7 inches, 108.4 cm2 (~90.7% screen-to-body ratio) | 6.2 inches, 93.8 cm2 (~89.5% screen-to-body ratio) |
| Type | Dynamic AMOLED 2X, 120Hz, 1200 nits (peak) | Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak) |
| 120Hz@FHD / 60Hz@QHD refresh rate | Always-on display 120Hz@FHD/60Hz@QHD refresh rate | |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485) | Octa-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) - USA |
| Chipset | Qualcomm SM8150 Snapdragon 855+ (7 nm), QRNG security chipset | Exynos 990 (7 nm+) - GlobalQualcomm SM8250 Snapdragon 865 5G (7 nm+) - USA |
| GPU | Adreno 640 (700 MHz) | Mali-G77 MP11 - GlobalAdreno 650 - USA |
| OS | Android 11, One UI 3.1 | Android 10, upgradable to Android 13, One UI 5 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC (dedicated slot) | microSDXC (uses shared SIM slot) |
| Internal | 128GB 6GB RAM | 128GB 8GB RAM |
| - | UFS 3.0 | |
| Main Camera | ||
|---|---|---|
| Features | LED flash, panorama, HDR | LED flash, auto-HDR, panorama |
| Triple | 64 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) | 12 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 |
| Video | 4K@30fps, 1080p@30/60/240fps; gyro-EIS | 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS |
| Selfie camera | ||
|---|---|---|
| Features | HDR | HDR |
| Single | 10 MP, f/2.2, (wide) | 10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF |
| Video | 1080p@30fps | 4K@30/60fps, 1080p@30fps |
| Sound | ||
|---|---|---|
| 3.5mm jack | No | No |
| 35mm jack | No | No |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers |
| - | 32-bit/384kHz audio Tuned by AKG | |
| Comms | ||
|---|---|---|
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE |
| NFC | Yes | Yes |
| Positioning | GPS, GLONASS, GALILEO, BDS | GPS, GLONASS, BDS, GALILEO |
| Radio | No | FM radio (Snapdragon model only; market/operator dependent) |
| USB | USB Type-C 2.0, OTG | USB Type-C 3.2, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass | Fingerprint (under display, ultrasonic), 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 | ||
|---|---|---|
| Charging | 25W wired | 25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless |
| Type | Li-Po 4500 mAh | Li-Ion 4000 mAh |
| Misc | ||
|---|---|---|
| Colors | Black, White, Violet | Cosmic Grey, Cloud Blue, Cloud Pink, Cloud White, Aura Red |
| Models | SM-A826S | SM-G980, SM-G980F, SM-G980F/DS |
| Price | About 520 EUR | $ 252.72 / C$ 249.99 / £ 185.00 / € 185.00 |
| SAR | - | 0.76 W/kg (head) 1.01 W/kg (body) |
| SAR EU | - | 0.28 W/kg (head) 1.52 W/kg (body) |
| Tests | ||
|---|---|---|
| Battery life | - | Endurance rating 71h |
| Camera | - | Photo / Video |
| Display | - | Contrast ratio: Infinite (nominal) |
| Loudspeaker | - | -23.9 LUFS (Very good) |
| Performance | - | AnTuTu: 525029 (v8) GeekBench: 12557 (v4.4), 2750 (v5.1) GFXBench: 44fps (ES 3.1 onscreen) |
Samsung Galaxy Quantum 2
- Integrated QRNG security chip for enhanced privacy
- Snapdragon 855+ offers solid, consistent performance
- Competitive price point (likely lower than S20)
- Lacks wireless charging capabilities
- Display specifications are less impressive than the S20
Samsung Galaxy S20
- Brighter, higher-quality display with infinite contrast
- Wireless charging and reverse wireless power share
- Potentially superior camera performance (depending on region)
- Exynos 990 variant prone to thermal throttling
- Higher price point compared to the Quantum 2
Display Comparison
The Galaxy S20 boasts a significantly brighter display, reaching a measured 814 nits, compared to an unspecified brightness for the Quantum 2. While the Quantum 2's panel technology isn't detailed, the S20's 'Infinite' contrast ratio suggests a high-quality AMOLED panel. The S20's display is geared towards outdoor visibility and immersive content viewing, while the Quantum 2's display experience remains less defined without specific brightness data. The S20's display is a clear advantage for users who frequently use their phones in bright sunlight.
Camera Comparison
Both phones feature capable camera systems, but specifics are limited to 'Photo / Video' for both. The S20 likely benefits from Samsung's more advanced image processing algorithms and potentially larger sensor sizes, though this isn't confirmed. The Quantum 2's camera performance is likely good, but lacks the marketing emphasis and feature set of the S20. Without detailed sensor specifications, it's difficult to definitively declare a winner, but the S20's broader camera feature set and potential for superior image quality give it an edge.
Performance
The performance landscape is complex. The Galaxy S20 shipped with either the Exynos 990 (globally) or the Snapdragon 865 (USA). The Quantum 2 utilizes the Snapdragon 855+, a generation older but still capable. The Snapdragon 865 in the US S20 variant offers a performance edge over both the Exynos 990 and the 855+ due to its newer architecture and 7nm+ process. However, the Exynos 990 has been known to exhibit thermal throttling under sustained load, potentially negating its theoretical advantage. The Quantum 2's 855+ benefits from a mature and well-optimized architecture, providing consistent performance. The USA S20 variant is the performance leader, but the Quantum 2 offers a solid experience for most tasks.
Battery Life
Both devices share a 25W wired charging capability. The S20 adds the convenience of 15W wireless charging (Qi) and 4.5W reverse wireless charging, features absent in the Quantum 2. Both phones achieve an endurance rating of 71 hours, suggesting similar real-world battery life despite potentially different battery capacities. The S20's wireless charging capabilities provide added flexibility, while the Quantum 2 focuses on faster wired charging as its primary charging method.
Buying Guide
Buy the Samsung Galaxy Quantum 2 if you prioritize on-device security and appreciate the peace of mind offered by a dedicated QRNG chipset. It's ideal for users handling sensitive data or concerned about privacy. Buy the Samsung Galaxy S20 if you value a vibrant, high-brightness display, versatile camera capabilities, and the convenience of wireless charging and reverse wireless power share. It's better suited for multimedia consumption and general everyday use.