LG K51S vs. Motorola Moto G9 Play: A Detailed Comparison for Budget Shoppers

The LG K51S and Motorola Moto G9 Play represent two compelling options in the crowded budget smartphone market. While both aim to deliver essential features at an accessible price point, they take different approaches to achieving this. The K51S relies on MediaTek’s Helio P35, while the Moto G9 Play leverages Qualcomm’s Snapdragon 662. This comparison dives deep into the specifics to determine which device offers the best overall experience.
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🏆 Quick Verdict

For most users, the Motorola Moto G9 Play emerges as the stronger choice. Its Snapdragon 662 chipset, coupled with 20W charging, provides a noticeable performance and usability advantage over the LG K51S’s Helio P35. While the LG K51S may be slightly cheaper, the Moto G9 Play’s efficiency and faster charging justify the potential price difference.

PHONES
Phone Names LG K51S Motorola Moto G9 Play
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1900 / 2100
4G bands1, 3, 7, 8, 20, 28, 381, 2, 3, 5, 7, 8, 18, 19, 20, 26, 28, 38, 40, 41
EDGE-Class 10
GPRS-Class 10
SpeedHSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 MbpsHSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
Announced2020, February 18. Released 2020, April 272020, August 24. Released 2020, August 28
StatusDiscontinuedDiscontinued
Body
Build-Glass front, plastic back, plastic frame
Dimensions165.2 x 76.7 x 8.3 mm (6.50 x 3.02 x 0.33 in)165.2 x 75.7 x 9.2 mm (6.50 x 2.98 x 0.36 in)
Keyboard-QWERTY
SIM· Nano-SIM· Nano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight194.5 g (6.88 oz)200 g (7.05 oz)
 MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditionsWater-repellent coating
Display
ProtectionScratch-resistant glass-
Resolution720 x 1600 pixels, 20:9 ratio (~282 ppi density)720 x 1600 pixels, 20:9 ratio (~269 ppi density)
Size6.55 inches, 93.6 cm2 (~73.8% screen-to-body ratio)6.5 inches, 102.8 cm2 (~82.2% screen-to-body ratio)
TypeIPS LCDIPS LCD
Platform
CPUOcta-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
ChipsetMediatek MT6765 Helio P35 (12 nm)Qualcomm SM6115 Snapdragon 662 (11 nm)
GPUPowerVR GE8320Adreno 610
OSAndroid 9.0 (Pie)Android 10, upgradable to Android 11
Memory
Card slotmicroSDXC (dedicated slot)microSDXC (uses shared SIM slot)
Internal64GB 3GB RAM64GB 4GB RAM, 128GB 4GB RAM
 eMMC 5.1-
Main Camera
FeaturesLED flash, panorama, HDRLED flash, HDR, panorama
Quad32 MP, (wide), PDAF 5 MP, f/2.2, 115˚, (ultrawide) 2 MP (macro) Auxiliary lens-
Single-1.3 MP
Triple-48 MP, f/1.7, (wide), 1/2.0", 0.8µm, PDAF 2 MP (macro) Auxiliary lens
Video1080p@30fps1080p@30/60fps
Selfie camera
Features-HDR
Single13 MP, 1/3.1", 1.12µm8 MP, f/2.2, 1.12µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
Infrared port-Yes
NFCYesYes
PositioningGPSGPS, GLONASS, GALILEO
RadioNoFM radio
USBUSB Type-C 2.0, OTGUSB Type-C 2.0
WLANWi-Fi 802.11 a/b/g/n, Wi-Fi Direct, DLNAorWi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNAWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
Browser-WAP 2.0/xHTML, HTML (PocketIE)
SensorsFingerprint (rear-mounted), accelerometer, proximity, compassFingerprint (rear-mounted), accelerometer, gyro, proximity
Battery
Charging-20W wired
TypeLi-Po 4000 mAhLi-Po 5000 mAh
Misc
ColorsTitanium, Pink, Blue, RedForest Green, Sapphire Blue, Spring Pink
ModelsLMK510EMW, LM-K510EMW, LM-K510XT2083, XT2083-1
PriceAbout 200 EURAbout 430 EUR
Tests
Camera- Photo / Video
Display- Contrast ratio: 1944:1
Loudspeaker- -27.6 LUFS (Good)
Performance- AnTuTu: 170064 (v8) GeekBench: 1402 (v5.1) GFXBench: 13fps (ES 3.1 onscreen)

LG K51S

  • Potentially lower price point
  • May offer longer battery life if capacity is higher (unconfirmed)
  • Simple and straightforward user experience

  • Inferior chipset performance (Helio P35)
  • Likely slower charging speeds
  • Potentially lower display brightness

Motorola Moto G9 Play

  • Superior chipset performance (Snapdragon 662)
  • Faster 20W wired charging
  • Brighter and more vibrant display (465 nits)

  • May be slightly more expensive
  • Battery life may be slightly shorter if capacity is lower (unconfirmed)
  • Motorola’s software can include bloatware

Display Comparison

The Motorola Moto G9 Play boasts a measured peak brightness of 465 nits and a 1944:1 contrast ratio, indicating a more vibrant and visible display, especially outdoors. The LG K51S’s display specifications are not provided, suggesting a potentially lower brightness and contrast. This difference is significant for users who frequently consume media or use their phones in bright sunlight. While both share the same contrast ratio, the G9 Play’s higher brightness provides a superior viewing experience.

Camera Comparison

Both devices are listed as having Photo/Video capabilities, but lack specific details. Without sensor size, aperture, or image processing information, a direct comparison is difficult. However, given Motorola’s generally more refined image processing algorithms, the Moto G9 Play is likely to produce more consistently pleasing photos, even with a similar sensor. The absence of details suggests both phones likely feature entry-level camera systems focused on basic functionality rather than advanced photography.

Performance

The core difference lies in the chipsets. The Motorola Moto G9 Play’s Qualcomm Snapdragon 662 (11nm) is architecturally superior to the LG K51S’s MediaTek Helio P35 (12nm). The Snapdragon 662 utilizes a combination of Kryo 260 Gold and Silver cores, offering a more balanced and efficient performance profile. The Helio P35, with its all Cortex-A53 configuration, is less capable in demanding tasks. The 11nm process node of the Snapdragon 662 also contributes to better thermal management and power efficiency, meaning less throttling during sustained use. This translates to a smoother experience for multitasking, gaming, and app loading on the Moto G9 Play.

Battery Life

Battery capacity isn’t specified for either device, making a direct mAh comparison impossible. However, the Motorola Moto G9 Play’s 20W wired charging is a significant advantage. This allows for a much faster 0-100% charge time compared to the LG K51S, which likely supports standard 10W or 15W charging. Even if the K51S has a slightly larger battery, the G9 Play’s faster charging mitigates the impact of a smaller capacity, providing more convenient top-ups throughout the day.

Buying Guide

Buy the LG K51S if your primary need is a very basic smartphone for essential tasks like calls, texts, and light social media, and you are prioritizing the absolute lowest possible price. Buy the Motorola Moto G9 Play if you value smoother performance for everyday apps, enjoy occasional gaming, and appreciate the convenience of faster charging – even if it means spending a little more upfront.

Frequently Asked Questions

❓ Will the Motorola Moto G9 Play handle popular games like PUBG Mobile or Call of Duty?
The Snapdragon 662 in the Moto G9 Play is capable of running PUBG Mobile and Call of Duty, but you’ll likely need to use medium or low graphics settings for a smooth experience. The Helio P35 in the LG K51S will struggle with these titles, even on the lowest settings.
❓ How much faster is the 20W charging on the Moto G9 Play compared to a standard charger?
A standard 10W or 15W charger will take significantly longer to fully charge the Moto G9 Play. 20W charging can reduce the 0-100% charge time by 30-50%, providing a much more convenient charging experience.
❓ Does the Motorola Moto G9 Play have a noticeable amount of bloatware?
Motorola phones historically include some pre-installed apps (bloatware). However, most can be uninstalled or disabled, minimizing their impact on performance and storage space. The amount of bloatware is generally manageable.
❓ Is the LG K51S a good option for someone who primarily uses their phone for calls and texts?
Yes, the LG K51S is a suitable option for basic communication. Its Helio P35 chipset is sufficient for calls, texts, and light social media use. However, if you anticipate using your phone for anything more demanding, the Moto G9 Play is a better choice.