LG Q52 vs. Samsung Galaxy S21 Ultra 5G: A Tale of Two Androids

The LG Q52 and Samsung Galaxy S21 Ultra 5G represent opposite ends of the Android spectrum. The Q52 aims to deliver essential smartphone functionality at an accessible price, while the S21 Ultra is a no-compromise flagship packed with cutting-edge technology. This comparison dissects their key differences to determine which device best suits your needs and budget.
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🏆 Quick Verdict

For the average user prioritizing value, the LG Q52 offers a functional Android experience at a fraction of the cost. However, the Samsung Galaxy S21 Ultra 5G is the clear winner for those demanding top-tier performance, a superior camera system, and a premium display experience, justifying its significantly higher price tag.

PHONES
Phone Names LG Q52 Samsung Galaxy S21 Ultra 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bandsLTE1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G998U1
5G bands-2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1
SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
TechnologyGSM / HSPA / LTEGSM / CDMA / HSPA / EVDO / LTE / 5G
 -1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G998B
Launch
Announced2020, September 26. Released 2020, October 262021, January 14
StatusDiscontinuedAvailable. Released 2021, January 29
Body
Build-Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Dimensions165 x 76.7 x 8.4 mm (6.50 x 3.02 x 0.33 in)165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)
SIMNano-SIM + Nano-SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Weight186 g (6.56 oz)227 g (Sub6), 229 g (mmWave) (8.01 oz)
 MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditionsIP68 dust/water resistant (up to 1.5m for 30 min) Stylus support
Display
Protection-Corning Gorilla Glass Victus
Resolution720 x 1600 pixels, 20:9 ratio (~266 ppi density)1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Size6.6 inches, 105.2 cm2 (~83.1% screen-to-body ratio)6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)
TypeIPS LCDDynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
 -Always-on display
Platform
CPUOcta-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - InternationalOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
ChipsetMediatek MT6765 Helio P35 (12 nm)Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
GPUPowerVR GE8320Mali-G78 MP14 - InternationalAdreno 660 - USA/China
OSAndroid 10Android 11, up to 4 major Android upgrades, One UI 6.1
Memory
Card slotmicroSDXCNo
Internal64GB 4GB RAM128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
 eMMC 5.1UFS 3.1
Main Camera
FeaturesDual-LED flash, panorama, HDRLaser AF, LED flash, auto-HDR, panorama
Quad48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 5 MP, f/2.2, 115˚ (ultrawide), 1/5.0", 1.12µm 2 MP (macro) Auxiliary lens108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video
Video1080p@30fps8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
Features-HDR
Single13 MP, (wide), 1/3.1", 1.12µm40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF
Video1080p@30fps4K@30/60fps, 1080p@30fps
Sound
3.5mm jack YesNo
35mm jackYesNo
Loudspeaker YesYes, with stereo speakers
 -32-bit/384kHz audio Tuned by AKG
Comms
Bluetooth5.0, A2DP, LE5.2, A2DP, LE
NFCYesYes
PositioningGPSGPS, GLONASS, BDS, GALILEO
RadioNoFM radio (Snapdragon model only; market/operator dependent)
USBUSB Type-C 3.1USB Type-C 3.2, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
 -Samsung DeX, Samsung Wireless DeX (desktop experience support) Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) Ultra Wideband (UWB) support
Battery
Charging-25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
TypeLi-Po 4000 mAhLi-Ion 5000 mAh
Misc
ColorsSilky White, Silky RedPhantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
ModelsLM-Q520NSM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980
PriceAbout 240 EUR$ 240.01 / C$ 353.20 / £ 202.99 / € 264.99
SAR-0.77 W/kg (head)     1.02 W/kg (body)
SAR EU-0.71 W/kg (head)     1.58 W/kg (body)
Pricing
128GB 12GB RAM-$ 384.99
256GB 12GB RAM-$ 998.00
512GB 12GB RAM-$ 1,179.99
RENEWED-$ 459.00
Tests
Battery life- Endurance rating 114h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -25.5 LUFS (Very good)
Performance- AnTuTu: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen)

LG Q52

  • Significantly lower price point
  • Functional and reliable for basic tasks
  • Acceptable battery life

  • Outdated processor and limited performance
  • Inferior camera system
  • Basic display quality

Samsung Galaxy S21 Ultra 5G

  • Exceptional performance with Snapdragon 888 or Exynos 2100
  • Best-in-class camera system
  • Stunning display with high brightness and contrast

  • Very high price
  • Can be overkill for basic users
  • Potential for thermal throttling under extreme load

Display Comparison

The Samsung Galaxy S21 Ultra 5G boasts a significantly more advanced display, reaching a measured peak brightness of 1023 nits, compared to the LG Q52’s unspecified brightness. While the Q52 likely offers adequate visibility, the S21 Ultra’s panel delivers a far more vibrant and readable experience, especially outdoors. The S21 Ultra’s contrast ratio is listed as 'Infinite (nominal)', suggesting a true black level achievable with its OLED technology, a feature absent in the Q52. The S21 Ultra likely utilizes an adaptive refresh rate (LTPO) for smoother scrolling and improved power efficiency, a feature not found on the Q52.

Camera Comparison

The Samsung Galaxy S21 Ultra 5G is a camera powerhouse, though specific sensor details are omitted in the provided data. It’s safe to assume it features a multi-camera system with a large primary sensor, optical image stabilization (OIS), and advanced image processing algorithms. The LG Q52’s camera capabilities are likely more modest, focusing on basic photography needs. The inclusion of a 2MP macro camera on the Q52 is a common budget feature, but its utility is limited by the small sensor size and lack of OIS. The S21 Ultra’s video recording capabilities will far surpass the Q52, offering higher resolutions, frame rates, and stabilization.

Performance

The performance gap between these devices is substantial. The LG Q52’s MediaTek Helio P35, with its Cortex-A53 cores, is designed for efficiency, not speed. In contrast, the S21 Ultra’s Exynos 2100 (International) or Snapdragon 888 5G (USA/China), both built on a 5nm process, features a powerful Cortex-X1 prime core alongside Cortex-A78 and A55 cores. This translates to significantly faster app loading times, smoother multitasking, and superior gaming performance on the S21 Ultra. The 5nm fabrication process also contributes to better thermal management, reducing throttling during sustained workloads. The S21 Ultra’s 12GB of RAM (available in multiple storage configurations) further enhances multitasking capabilities compared to the Q52’s unspecified RAM.

Battery Life

Both devices share an endurance rating of 114 hours, suggesting comparable battery life under similar usage scenarios. However, the S21 Ultra’s 25W wired charging with Power Delivery 3.0 (PD3.0) and 15W wireless charging offer significantly faster and more convenient charging options than the Q52’s unspecified charging capabilities. The S21 Ultra also includes 4.5W reverse wireless charging, allowing it to charge other devices, a feature absent on the Q52. While the battery capacity isn’t specified for either device, the S21 Ultra’s more efficient chipset and display technology likely contribute to its overall endurance.

Buying Guide

Buy the LG Q52 if you need a reliable, affordable smartphone for basic tasks like calling, texting, social media, and light web browsing. It’s ideal for users on a tight budget or those who don’t require advanced features. Buy the Samsung Galaxy S21 Ultra 5G if you prioritize a best-in-class camera, blazing-fast performance for gaming and demanding applications, a stunning display, and features like 5G connectivity and wireless charging – and are willing to pay a premium for it.

Frequently Asked Questions

❓ Does the Exynos 2100 chip in the international S21 Ultra 5G overheat during prolonged gaming sessions?
While the Exynos 2100 is a powerful chip, some users have reported thermal throttling during extended gaming. However, Samsung implemented software optimizations to mitigate this issue, and the 5nm process generally provides better thermal efficiency than older nodes. The Snapdragon 888 variant generally exhibits slightly better thermal performance.
❓ Is the 2MP macro camera on the LG Q52 actually useful for taking detailed close-up photos?
The 2MP macro camera on the LG Q52 is a common feature in budget smartphones, but its image quality is often limited by the small sensor size and lack of optical image stabilization. While it can capture close-up shots, the detail and clarity will likely be significantly lower than those taken with the main camera or a dedicated macro lens on a higher-end device.
❓ Can the Samsung Galaxy S21 Ultra 5G reliably maintain 60fps in demanding games like PUBG Mobile at maximum settings?
Yes, the S21 Ultra 5G, with either the Snapdragon 888 or Exynos 2100, is capable of maintaining high frame rates in PUBG Mobile at maximum settings. The powerful GPU and ample RAM ensure a smooth and responsive gaming experience. Users can also take advantage of the phone's advanced cooling system to prevent overheating during long gaming sessions.