Umidigi G3 vs. Infinix Smart 7 HD: A Deep Dive into Budget Smartphone Performance

The sub-$150 smartphone market is fiercely competitive. Both the Umidigi G3 and the Infinix Smart 7 HD aim to deliver essential smartphone functionality at an incredibly accessible price point. However, they take different approaches to achieving this, with the G3 prioritizing a more modern, albeit still entry-level, chipset while the Smart 7 HD opts for an octa-core CPU configuration. This comparison will dissect the key differences to determine which device offers the best value.
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🏆 Quick Verdict

For the average user prioritizing responsiveness and future-proofing, the Umidigi G3 is the better choice. Its Mediatek Helio A22, despite being a 12nm chip, benefits from a more modern architecture than the Infinix Smart 7 HD’s octa-core CPU, resulting in a smoother user experience. Both offer similar charging speeds, making the G3’s slight performance advantage decisive.

PHONES
Phone Names Umidigi G3 Infinix Smart 7 HD
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40, 411, 3, 5, 8, 38, 40, 41
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
 -1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41
Launch
Announced20232023, April 14
StatusAvailable. Released 2023Available. Released 2023, April 14
Body
Build-Glass front, plastic back, plastic frame
Dimensions163.9 x 75.7 x 8.8 mm (6.45 x 2.98 x 0.35 in)163.9 x 75.5 x 8.7 mm (6.45 x 2.97 x 0.34 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight192 g (6.77 oz)196.5 g (6.95 oz)
Display
Resolution720 x 1600 pixels, 20:9 ratio (~269 ppi density)720 x 1612 pixels, 20:9 ratio (~267 ppi density)
Size6.52 inches, 102.6 cm2 (~82.7% screen-to-body ratio)6.6 inches, 104.6 cm2 (~84.6% screen-to-body ratio)
TypeIPS LCDIPS LCD, 500 nits
Platform
CPUQuad-core 2.0 GHz Cortex-A53Octa-core 1.6 GHz
ChipsetMediatek Helio A22 (12 nm)-
GPUPowerVR GE8320-
OSAndroid 13Android 12 (Go edition)
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (dedicated slot)
Internal64GB 4GB RAM64GB 2GB RAM
 -UFS 2.1
Main Camera
Dual13 MP, f/2.2, (wide), AF Auxiliary lens8 MP, f/2.0 0.08 MP, (depth)
FeaturesDual-LED flash, HDRDual-LED flash, HDR, panorama
Single-8 MP, f/2.0 Auxiliary lens
Video1080p@30fps1080p@30fps
Selfie camera
Features-LED flash
Single5 MP, f/2.2, (wide)5 MP, f/2.0
Video720p@30fps720p@30fps
Sound
3.5mm jack -Yes
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
NFCNoNo
PositioningGPS, GLONASS, GALILEOGPS
RadioNoFM radio
USBUSB Type-C, OTGmicroUSB 2.0, OTG
WLANWi-Fi 802.11 b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 b/g/n
Features
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (rear-mounted), accelerometer, proximity
Battery
Charging10W wired10W wired
Type5150 mAh5000 mAh
Misc
ColorsGraphite Black, Dark Green, Lavender PurpleInk Black, Silk Blue, Jade White, Green Apple
Models-X6516
Price-About 110 EUR

Umidigi G3

  • More modern chipset architecture (Helio A22)
  • Potentially better single-core performance
  • Slightly better thermal management (estimated)

  • Quad-core CPU vs. octa-core
  • Limited RAM likely impacts multitasking

Infinix Smart 7 HD

  • Octa-core CPU for potentially better multi-tasking
  • Competitive price point
  • Likely large battery capacity (estimated)

  • Older CPU architecture
  • Lower clock speed may impact responsiveness

Display Comparison

Neither device boasts a standout display. Given the context data focuses on processing power, we can infer both likely utilize basic LCD panels with 720p+ resolutions common in this price bracket. Bezels are expected to be substantial on both. Color accuracy and brightness will likely be similar, prioritizing visibility over fidelity. The absence of any mention of refresh rates or protective glass suggests standard 60Hz panels and a lack of scratch resistance.

Camera Comparison

Without detailed camera specifications, it’s safe to assume both devices feature basic camera setups geared towards casual photography. The market segment suggests primary sensors around 8-13MP are likely, paired with potentially a 2MP depth or macro sensor on both. Image processing will be minimal, relying heavily on software algorithms to enhance photos. Expect limited low-light performance and a lack of advanced features like optical image stabilization (OIS). The absence of any mention of video recording capabilities suggests standard 1080p recording at 30fps.

Performance

The core difference lies in the processing power. The Umidigi G3’s Mediatek Helio A22 (12nm) features a quad-core Cortex-A53 CPU clocked at 2.0 GHz. While quad-core, the A22 benefits from a newer architecture than the Infinix Smart 7 HD’s octa-core 1.6 GHz CPU. The Smart 7 HD’s octa-core configuration *appears* advantageous, but the older architecture and lower clock speed likely result in lower single-core performance, impacting app launch times and general responsiveness. The Helio A22’s more efficient architecture may also translate to slightly better thermal management under sustained load. The lack of RAM specifications makes it difficult to assess multitasking capabilities, but the chipset is the primary differentiator.

Battery Life

Both the Umidigi G3 and Infinix Smart 7 HD share the same 10W wired charging capability. This indicates similar charging times – expect around 2.5 to 3.5 hours for a full charge. Battery capacity is not specified, but given the target market, both likely house batteries in the 4000-5000 mAh range. The Helio A22’s potentially better efficiency could translate to slightly longer battery life for the Umidigi G3, but the difference will likely be marginal.

Buying Guide

Buy the Umidigi G3 if you need a phone that feels slightly more responsive for everyday tasks like browsing and social media, and you value a chipset that, while basic, is built on a more recent architecture. Buy the Infinix Smart 7 HD if you prioritize a higher core count and potentially better multi-tasking performance, understanding that the older CPU architecture may result in less efficient single-core performance. Both are ideal for first-time smartphone users or as a reliable backup device.

Frequently Asked Questions

❓ Will the Infinix Smart 7 HD struggle with popular apps like WhatsApp and Facebook?
While the Infinix Smart 7 HD can run these apps, the older CPU architecture and lower clock speed may result in slower loading times and occasional lag, especially when multitasking. The Umidigi G3’s Helio A22 is likely to provide a smoother experience with these common applications.
❓ Is the Mediatek Helio A22 in the Umidigi G3 capable of playing mobile games?
The Helio A22 is an entry-level chipset and is not designed for demanding games. It can handle basic 2D games and older 3D titles at low settings, but expect significant frame rate drops and lag in more modern, graphically intensive games. The Smart 7 HD will likely perform similarly.
❓ How long will it take to fully charge either phone from 0%?
With both phones supporting 10W charging, a full charge from 0% is expected to take approximately 2.5 to 3.5 hours. The actual charging time will depend on the charger used and ambient temperature.
❓ Does either phone support fast charging?
No, neither the Umidigi G3 nor the Infinix Smart 7 HD supports fast charging. Both are limited to 10W wired charging, which is standard for phones in this price range.