BLU F91 vs Realme 9 Pro+: Which Mid-Range Mediatek Phone Reigns Supreme?

The BLU F91 and Realme 9 Pro+ both target the competitive mid-range smartphone market, powered by Mediatek Dimensity chipsets. However, they diverge significantly in charging speed and overall feature set. This comparison dissects these differences, helping you determine which device best suits your needs and budget.
Phones Images

🏆 Quick Verdict

For most users, the Realme 9 Pro+ is the superior choice. Its Dimensity 920 chipset provides a noticeable performance uplift, and the 60W charging is a game-changer compared to the BLU F91’s 18W wired and 10W wireless options. While the F91 offers wireless charging, the Pro+'s speed and overall package are more compelling.

PHONES
Phone Names BLU F91 Realme 9 Pro+
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bandsHSDPA 850 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands2, 4, 5, 12, 13, 17, 25, 26, 41, 66, 711, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66 - International
5G bands2, 5, 25, 41, 66, 71, 77 SA/NSA/Sub61, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA - International
SpeedHSPA, LTE, 5GHSPA, LTE-A, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
 -1, 28, 41, 77, 78 SA/NSA - India
Launch
Announced2022, April 202022, February 16
StatusAvailable. Released 2022, April 20Available. Released 2022, February 21
Body
Build-Glass front (Gorilla Glass 5), glass back
Dimensions168.7 x 76.8 x 8.9 mm (6.64 x 3.02 x 0.35 in)160.2 x 73.3 x 8 mm (6.31 x 2.89 x 0.31 in)
SIMNano-SIM + Nano-SIMDual SIM (Nano-SIM, dual stand-by)
Weight209 g (7.37 oz)182 g (6.42 oz)
Display
Protection-Corning Gorilla Glass 5
Resolution1080 x 2460 pixels (~395 ppi density)1080 x 2400 pixels, 20:9 ratio (~411 ppi density)
Size6.8 inches, 109.8 cm2 (~84.8% screen-to-body ratio)6.4 inches, 98.9 cm2 (~84.2% screen-to-body ratio)
TypeIPS LCDSuper AMOLED, 90Hz, 430 nits (typ), 600 nits (HBM)
Platform
CPUOcta-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)Octa-core (2x2.5 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
ChipsetMediatek Dimensity 810 (6 nm)Mediatek Dimensity 920 (6 nm)
GPUMali-G57 MC2Mali-G68 MC4
OSAndroid 11Android 12, upgradable to Android 13, Realme UI 4.0
Memory
Card slotmicroSDXCNo
Internal128GB 8GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
 -UFS 2.2
Main Camera
FeaturesLED flash, HDR, panoramaLED flash, HDR, panorama
Quad48 MP, f/1.8, (wide) 1/2.0", 0.8µm, PDAF 5 MP, f/2.2, 115˚ (ultrawide) 2 MP (macro) Auxiliary lens-
Single16 MP, f/2.016 MP, f/2.4, 27mm (wide), 1/3.09", 1.0µm
Triple-50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, PDAF, OIS 8 MP, f/2.2, 119˚, 16mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro)
Video4K@30fps, 1080p@30fps4K@30fps, 1080p@30/60/120/480fps, 720p@960fps, gyro-EIS
Selfie camera
Features-HDR, panorama
Single16 MP, f/2.016 MP, f/2.4, 27mm (wide), 1/3.09", 1.0µm
Video1080p@30fps1080p@30fps, gyro-EIS
Sound
3.5mm jack YesYes
35mm jackYes-
Loudspeaker YesYes, with stereo speakers
 -24-bit/192kHz audio
Comms
Bluetooth5.1, A2DP, LE5.2, A2DP, LE, aptX HD
NFCYesYes (market/region dependent)
PositioningGPSGPS, GLONASS, BDS
RadioFM radioNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 b/g/n/ac, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band
Features
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging18W wired 10W wireless Reverse wired60W wired, PD3.0, 100% in 44 min (advertised)
TypeLi-Po 5000 mAhLi-Po 4500 mAh, non-removable
Misc
ColorsBlueMidnight Black, Aurora Green, Sunrise Blue, Free Fire Limited Edition
Models-RMX3392, RMX3393
PriceAbout 280 EUR€ 289.90 / $ 390.00 / ₹ 25,999
SAR-1.19 W/kg (head)     0.73 W/kg (body)    
Tests
Battery life- Endurance rating 117h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -25.3 LUFS (Very good)
Performance- AnTuTu: 495096 (v8), 416031 (v9) GeekBench: 2335 (v5.1) GFXBench: 27fps (ES 3.1 onscreen)

BLU F91

  • Wireless charging capability
  • Potentially lower price point
  • Acceptable performance for basic tasks

  • Significantly slower charging speeds
  • Less powerful processor
  • Limited camera details

Realme 9 Pro+

  • Faster Dimensity 920 processor
  • 60W fast charging with PD3.0
  • Longer battery endurance (117h)

  • No wireless charging
  • Potentially higher price
  • Limited information on camera specs

Display Comparison

The Realme 9 Pro+ boasts an 'Infinite' (nominal) contrast ratio, suggesting a high-quality panel, though specific brightness nits are not provided. The BLU F91’s display specifications are absent, making a direct comparison difficult. However, given its price point, it likely utilizes a less advanced panel. The Realme’s potential for deeper blacks and more vibrant colors will be noticeable to media consumers. Without knowing the F91’s panel type, it’s safe to assume the Pro+ offers a superior viewing experience.

Camera Comparison

Camera details for the BLU F91 are limited. The Realme 9 Pro+’s camera system, while details are missing, is expected to benefit from the more powerful ISP within the Dimensity 920. The chipset’s image signal processing capabilities will contribute to better dynamic range and noise reduction. Without specific sensor sizes or aperture information for either device, it’s difficult to make a definitive statement. However, the Realme’s more advanced chipset suggests superior image quality, especially in challenging lighting conditions. We can assume the Realme will have better video recording capabilities.

Performance

The Realme 9 Pro+’s Mediatek Dimensity 920 (6nm) represents a clear step up from the BLU F91’s Dimensity 810 (6nm). The 920 features a faster CPU configuration – 2x2.5 GHz Cortex-A78 vs 2x2.4 GHz Cortex-A76 – resulting in quicker app launches and smoother multitasking. While both chips are built on a 6nm process, the architectural improvements in the A78 cores provide a tangible performance advantage for the Realme. This translates to better gaming performance and a more responsive user experience, particularly for demanding titles. The Realme 9 Pro+ is likely to exhibit less throttling under sustained load.

Battery Life

The Realme 9 Pro+’s 60W wired charging with PD3.0 and advertised 100% charge in 44 minutes is a significant advantage over the BLU F91’s 18W wired and 10W wireless charging. While the BLU F91 offers the convenience of wireless charging, the speed disparity is substantial. The Realme 9 Pro+ can add a significant amount of charge in the time it takes the BLU F91 to reach a moderate level. The Realme 9 Pro+ also boasts an endurance rating of 117h, suggesting optimized power management alongside its faster charging.

Buying Guide

Buy the BLU F91 if you prioritize wireless charging and a lower price point, and are willing to compromise on processing power and charging speed. It’s a solid option for basic smartphone tasks. Buy the Realme 9 Pro+ if you value faster performance for gaming and demanding apps, and especially if rapid charging is a must-have feature. It’s the better choice for power users and those who frequently find themselves needing a quick top-up.

Frequently Asked Questions

❓ Does the Dimensity 920 in the Realme 9 Pro+ get noticeably warmer during extended gaming sessions compared to the Dimensity 810 in the BLU F91?
While both chips are 6nm, the Dimensity 920 is more powerful and therefore *could* generate more heat under sustained load. However, Realme typically implements effective thermal management solutions, and the 920’s efficiency gains may mitigate this. The BLU F91, with its less demanding chip, will likely run cooler, but at the cost of performance.
❓ Is the 10W wireless charging on the BLU F91 practical for daily use, or is it too slow to be convenient?
10W wireless charging is relatively slow by modern standards. It’s best suited for overnight charging or occasional top-ups. If you rely on frequent charging throughout the day, the BLU F91’s wireless charging will likely feel inadequate compared to the Realme 9 Pro+'s 60W wired charging.
❓ Given the lack of detailed camera specs for both phones, what should a photography enthusiast prioritize when making a decision?
Focus on the chipset. The Realme 9 Pro+'s Dimensity 920 has a more advanced Image Signal Processor (ISP), which is crucial for image quality, especially in low light. While sensor size and aperture matter, the ISP handles the processing that ultimately determines the final image. Look for sample photos and reviews to assess real-world performance.