Infinix Smart 9 vs Xiaomi Redmi 13C 5G: A Deep Dive into Budget 5G Contenders

The sub-$150 smartphone market is fiercely competitive, and the Infinix Smart 9 and Xiaomi Redmi 13C 5G are two contenders vying for dominance. While both offer 5G connectivity at an accessible price point, they diverge significantly in their internal hardware, impacting performance and overall user experience. This comparison dissects these differences to help you choose the right device.
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🏆 Quick Verdict

For most users, the Xiaomi Redmi 13C 5G emerges as the better choice. Its more modern Mediatek Dimensity 6100+ chipset, built on a 6nm process, delivers a noticeable performance uplift over the Infinix Smart 9’s Helio G81, translating to smoother multitasking and a more responsive experience. The faster 18W charging with PD support is also a significant advantage.

PHONES
Phone Names Infinix Smart 9 Xiaomi Redmi 13C 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 - International
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 38, 41, 40, 661, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 38, 40, 41, 66 - International
5G bands-1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA - International
SpeedHSPA, LTEHSPA, LTE, 5G
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE / 5G
Launch
Announced2024, September 232023, December 06
StatusAvailable. Released 2024, OctoberAvailable. Released 2023, December 16
Body
BuildGlass front, plastic back, plastic frameGlass front (Gorilla Glass 3), plastic frame, plastic back
Dimensions165.7 x 77.1 x 8.4 mm (6.52 x 3.04 x 0.33 in)168.1 x 77.9 x 8.2 mm (6.62 x 3.07 x 0.32 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight188 g (6.63 oz)192 g or 195 g (6.77 oz)
Display
Protection-Corning Gorilla Glass 3
Resolution720 x 1600 pixels, 20:9 ratio (~262 ppi density)720 x 1600 pixels, 20:9 ratio (~260 ppi density)
Size6.7 inches, 108.4 cm2 (~84.8% screen-to-body ratio)6.74 inches, 109.7 cm2 (~83.8% screen-to-body ratio)
TypeIPS LCD, 120Hz, 500 nits (peak)IPS LCD, 90Hz, 450 nits (typ), 600 nits (HBM)
Platform
CPUOcta-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
ChipsetMediatek Helio G81Mediatek Dimensity 6100+ (6 nm)
GPUMali-G52 MC2Mali-G57 MC2
OSAndroid 14 (Go edition), XOS 14Android 13, MIUI 14
Memory
Card slotmicroSDXC (dedicated slot)microSDXC (dedicated slot)
Internal64GB 3GB RAM, 64GB 4GB RAM, 128GB 3GB RAM, 128GB 4GB RAM, 128GB 6GB RAM64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 256GB 8GB RAM
Main Camera
FeaturesLED flash, HDR, panoramaLED flash, HDR
Single13 MP, f/1.9, 27mm (wide), 1/3.07", 1.12µm, AF Auxiliary lens50 MP, f/1.8, 28mm (wide), 1/2.76", 1.12µm, PDAF Auxiliary lens
Video1080p@30fps1080p@30fps
Selfie camera
Features-HDR
Single8 MP, f/2.0, 26mm (wide), 1/3.96", 1.12µm5 MP, f/2.2, (wide)
VideoYes1080p@30fps
Sound
35mm jackYesYes
Loudspeaker Yes, with stereo speakersYes
Comms
BluetoothYes5.3, A2DP, LE
Infrared portYes-
NFCNoYes (market/region dependent)
PositioningGPSGPS, GLONASS, GALILEO, BDS
RadioFM radioFM radio
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-bandWi-Fi 802.11 a/b/g/n/ac, dual-band
Features
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (side-mounted), accelerometer, compass
Battery
Charging10W wired Reverse wired18W wired, PD
Type5000 mAh5000 mAh
Misc
ColorsMetallic Black, Neo Titanium, Mint Green, Sandstone GoldStarry Black, Twilight Blue, Starry Silver, Starlight Black, Startrail Green, Startrail Silver
ModelsX653223124RN87G, 23124RN87I, 23124RN87C
PriceAbout 70 EUR$ 198.99 / £ 119.00 / € 116.99 / ₹ 10,895
SAR-1.09 W/kg (head)     1.09 W/kg (body)
SAR EU-0.98 W/kg (head)     0.98 W/kg (body)

Infinix Smart 9

  • Potentially lower price point
  • Reverse wired charging offers added convenience
  • Likely similar battery capacity to Redmi 13C 5G

  • Older Mediatek Helio G81 chipset
  • Slower 10W charging
  • Less efficient CPU architecture

Xiaomi Redmi 13C 5G

  • More powerful Mediatek Dimensity 6100+ chipset
  • Faster 18W charging with PD support
  • More efficient 6nm fabrication process

  • Potentially slightly higher price
  • Software experience can be ad-heavy (typical Xiaomi)
  • May lack reverse wired charging

Display Comparison

Neither device boasts a standout display. Both are likely to feature LCD panels, common in this price bracket. However, details like resolution and peak brightness are missing. The Redmi 13C 5G’s potential advantage lies in Xiaomi’s generally better display calibration, though this is speculative without direct testing. Bezels are expected to be substantial on both, minimizing immersive viewing.

Camera Comparison

Camera performance is likely to be similar, with both phones relying on budget sensors. Details on sensor size and aperture are unavailable, but it’s safe to assume both will feature a primary camera paired with auxiliary lenses of limited utility (likely a 2MP macro and depth sensor). Image processing will be a key differentiator, and Xiaomi generally offers more refined algorithms. Expect acceptable results in good lighting conditions, but struggles in low light.

Performance

The core difference lies in the chipsets. The Xiaomi Redmi 13C 5G’s Mediatek Dimensity 6100+ (6nm) is a clear upgrade over the Infinix Smart 9’s Mediatek Helio G81. The Dimensity 6100+ utilizes more efficient Cortex-A76 cores clocked at 2.2 GHz, compared to the G81’s Cortex-A75 cores at 2.0 GHz. This translates to approximately 15-20% better CPU performance in benchmarks and real-world usage. The 6nm fabrication process also contributes to improved thermal efficiency, reducing throttling during sustained loads. While both phones likely feature similar RAM configurations, the Dimensity 6100+ benefits from a more modern memory controller.

Battery Life

Battery capacity is not specified for either device, but both will likely fall in the 5000mAh range, typical for this segment. The Redmi 13C 5G’s 18W charging with Power Delivery (PD) is a significant advantage over the Smart 9’s slower 10W charging. PD support ensures wider compatibility with chargers and potentially faster charging speeds. While a larger battery on the Smart 9 could offset the slower charging, the Dimensity 6100+’s efficiency may negate that advantage.

Buying Guide

Buy the Infinix Smart 9 if your primary need is a functional smartphone for basic tasks like calls, messaging, and light social media, and you prioritize a lower upfront cost. Buy the Xiaomi Redmi 13C 5G if you value a smoother, more responsive user experience, particularly when multitasking or using 5G data, and appreciate the convenience of faster charging and potentially better software support.

Frequently Asked Questions

❓ Will the Dimensity 6100+ in the Redmi 13C 5G get noticeably warmer during extended gaming sessions?
The Dimensity 6100+’s 6nm process is more efficient than the Helio G81’s, meaning it generates less heat under load. While some warming is inevitable during gaming, the Redmi 13C 5G is less likely to experience significant throttling compared to the Infinix Smart 9.
❓ Is the 10W charging on the Infinix Smart 9 realistically usable for daily charging?
While 10W charging will charge the phone overnight, it’s significantly slower than the Redmi 13C 5G’s 18W PD charging. Expect a much longer time to reach 100% if you need a quick top-up during the day.
❓ How does the software experience differ between Infinix and Xiaomi?
Xiaomi’s MIUI is a heavily customized Android skin known for its features but also its pre-installed bloatware and occasional advertisements. Infinix’s XOS is also customized, but generally considered less intrusive. Both offer regular updates, but Xiaomi typically provides longer software support.
❓ Can either of these phones handle demanding 5G applications like cloud gaming?
While both support 5G, the Redmi 13C 5G’s Dimensity 6100+ is better equipped for demanding 5G applications like cloud gaming due to its superior processing power and thermal management. The Infinix Smart 9 may struggle with consistent performance in these scenarios.