Samsung Galaxy A91 vs. S10 Lite: A Detailed Comparison of Two Snapdragon 855 Powerhouses

The Samsung Galaxy A91 and S10 Lite represent interesting points in Samsung’s strategy. The A91 aimed to bring flagship-level processing to a more accessible price point, while the S10 Lite offered a more compact flagship experience without the premium S10 price tag. Both devices share the Qualcomm Snapdragon 855 chipset, but diverge in areas like display technology and battery optimization, making a direct comparison crucial for potential buyers.
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🏆 Quick Verdict

For the average user prioritizing a brighter, more visually appealing display and proven battery endurance, the Samsung Galaxy S10 Lite is the better choice. While the A91 offers comparable performance, the S10 Lite’s 705 nits of brightness and 110-hour endurance rating provide a more refined and reliable user experience.

PHONES
Phone Names Samsung Galaxy A91 Samsung Galaxy S10 Lite
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 bandsLTE1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66
SpeedHSPA 42.2/5.76 MbpsHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
AnnouncedNot announced yet2020, January 03
StatusCancelledAvailable. Released 2020, February 03
Body
Build-Glass front (Gorilla Glass 3+), aluminum frame, plastic back
Dimensions-162.5 x 75.6 x 8.1 mm (6.40 x 2.98 x 0.32 in)
SIM· Nano-SIM· Nano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight-186 g (6.56 oz)
Display
Protection-Corning Gorilla Glass 3+
Resolution1080 x 2400 pixels, 20:9 ratio (~393 ppi density)1080 x 2400 pixels, 20:9 ratio (~394 ppi density)
Size6.7 inches, 108.4 cm26.7 inches, 107.8 cm2 (~87.8% screen-to-body ratio)
TypeSuper AMOLEDSuper AMOLED Plus, HDR10+
 Always-on displayAlways-on display
Platform
CPUOcta-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
ChipsetQualcomm SM8150 Snapdragon 855 (7 nm)Qualcomm SM8150 Snapdragon 855 (7 nm)
GPUAdreno 640Adreno 640
OSAndroid 10, One UIAndroid 10, upgradable to Android 13, One UI 5
Memory
Card slotmicroSDXCmicroSDXC (uses shared SIM slot)
Internal128GB 8GB RAM128GB 6GB RAM, 128GB 8GB RAM, 512GB 8GB RAM
 -UFS 2.1
Main Camera
FeaturesLED flash, panorama, HDRLED flash, panorama, HDR
Triple48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF, OIS 12 MP, f/2.2, 12mm (ultrawide), 1.12µm Auxiliary lens48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF, Super Steady OIS 12 MP, f/2.2, 12mm (ultrawide) 5 MP (macro)
Video4K@30fps, 1080p@30/60fps (gyro-EIS), 720p@960fps4K@30/60fps, 1080p@30/60/240fps; gyro-EIS
Selfie camera
FeaturesHDRHDR
Single32 MP, f/2.2, 25mm (wide), 1/2.8", 0.8µm32 MP, f/2.2, 25mm (wide), 1/2.8", 0.8µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
NFCNoYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, GALILEO, BDS
Radio-FM radio (market/region dependent)
USBUSB Type-C 2.0USB Type-C 2.0
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, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
 Samsung DeX (desktop experience support) ANT+ANT+
Battery
Charging45W wired45W wired
TypeLi-Po 4500 mAh, non-removableLi-Po 4500 mAh, non-removable
Misc
ColorsWhite, BlackPrism White, Prism Black, Prism Blue
ModelsSM-A915FSM-G770F, SM-G770F/DS, SM-G770F/DSM, SM-G770U1
Price-About 380 EUR
SAR-0.69 W/kg (head)     0.93 W/kg (body)
SAR EU-0.49 W/kg (head)     1.52 W/kg (body)
Tests
Audio quality- Noise -93.7dB / Crosstalk -94.7dB
Battery life-Endurance rating 110h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -27.2 LUFS (Good)
Performance- AnTuTu: 370751 (v7), 459497 (v8) GeekBench: 11151 (v4.4), 2732 (v5.1) GFXBench: 56fps (ES 3.1 onscreen)

Samsung Galaxy A91

  • Fast 45W charging for quick power-ups
  • Snapdragon 855 provides flagship-level performance
  • Potentially lower price point than the S10 Lite

  • Display quality likely inferior to the S10 Lite
  • Battery life potentially shorter than the S10 Lite
  • Software optimization may be less refined

Samsung Galaxy S10 Lite

  • Brighter and more vibrant display (705 nits)
  • Excellent battery life (110-hour endurance rating)
  • Mature software optimization for Snapdragon 855

  • May be slightly more expensive than the A91
  • Potentially less raw processing power in specific scenarios
  • Compact size may not appeal to all users

Display Comparison

The Galaxy S10 Lite boasts a display capable of reaching 705 nits of peak brightness, a significant advantage over what is expected from the A91 (data unavailable, but typically lower in A-series). This higher brightness translates to better outdoor visibility. While both displays feature an 'Infinite' contrast ratio, the S10 Lite’s superior brightness and likely better color calibration contribute to a more vibrant and immersive viewing experience. The A91’s display specs are less defined, suggesting a focus on cost reduction in this area.

Camera Comparison

Both devices offer photo and video capabilities, but detailed camera specifications are limited. Without sensor size or aperture data, a direct comparison is difficult. However, the S10 Lite’s position as a ‘Lite’ flagship suggests a higher emphasis on camera quality compared to the A91, which targeted a more budget-conscious market. It’s reasonable to assume the S10 Lite’s image processing algorithms are more refined, resulting in better dynamic range and low-light performance. The presence of OIS (Optical Image Stabilization) on the S10 Lite is also likely, further enhancing image quality.

Performance

Both the Galaxy A91 and S10 Lite are powered by the Qualcomm SM8150 Snapdragon 855 (7 nm) chipset, featuring an octa-core CPU configuration with the same clock speeds (1x2.84 GHz Kryo 485, 3x2.42 GHz Kryo 485, and 4x1.78 GHz Kryo 485). This means CPU performance will be virtually identical in most tasks. However, the S10 Lite benefits from Samsung’s more mature software optimization for the Snapdragon 855, potentially leading to slightly smoother performance and better thermal management during sustained loads. The A91, being a later release, *could* have benefited from later chipset revisions, but this isn't guaranteed.

Battery Life

The Galaxy S10 Lite achieves an impressive endurance rating of 110 hours, indicating excellent battery life. While the A91’s battery capacity is unknown, the S10 Lite’s endurance score suggests superior power efficiency. Both devices support 45W wired charging, promising rapid replenishment. However, the S10 Lite’s longer battery life means users will likely rely on fast charging less frequently, extending the overall lifespan of the battery.

Buying Guide

Buy the Samsung Galaxy A91 if you prioritize raw processing power and fast 45W charging above all else, and are comfortable potentially managing battery life more actively. Buy the Samsung Galaxy S10 Lite if you value a brighter, more color-accurate display, longer battery life, and a more established track record of software optimization, even if it means sacrificing a slight edge in peak performance.

Frequently Asked Questions

❓ Will the Snapdragon 855 in the A91 experience significant throttling during extended gaming sessions?
The Snapdragon 855 is known to throttle under sustained load. While both phones share the same chipset, the S10 Lite’s potentially better thermal management due to Samsung’s software optimization may result in slightly less throttling during prolonged gaming. However, neither device will maintain peak performance indefinitely.
❓ Is the 45W charging on both phones compatible with Power Delivery (PD) chargers?
Samsung’s 45W charging implementation typically supports Power Delivery (PD) chargers, but compatibility isn’t guaranteed with all PD chargers. Using a Samsung-branded 45W PD charger is recommended for optimal charging speeds and safety. Third-party chargers may not deliver the full 45W.
❓ Does the Galaxy S10 Lite's display support HDR10+ content?
Yes, the Galaxy S10 Lite's display does support HDR10+ content, providing a wider color gamut and increased dynamic range for compatible videos and streaming services. This enhances the viewing experience, particularly with HDR-enabled content.