BLU offers compelling value in the budget smartphone space, but choosing between models like the G51 Plus and the G91 Pro requires careful consideration. The G51 Plus represents a baseline affordable option, while the G91 Pro aims for a more performance-focused experience with its Mediatek Helio G90 chipset. This comparison dissects the key differences to determine which device delivers the best bang for your buck.
🏆 Quick Verdict
For most users, the BLU G91 Pro is the superior choice. Its Helio G90 chipset provides a significant performance uplift over the G51 Plus’s Cortex-A55 based processor, making it better suited for gaming and demanding applications. The addition of 30W wired and 10W wireless charging further sweetens the deal, justifying the price difference.
| Network |
|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 12, 17, 28 | 1, 2, 3, 4, 5, 7, 12, 17, 28 |
| Speed | HSPA, LTE | HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps |
| Technology | GSM / HSPA / LTE | GSM / HSPA / LTE |
| Launch |
|---|
| Announced | 2021, May 22. Released 2021, May 22 | 2021, August 26. Released 2021, August 26 |
| Status | Discontinued | Discontinued |
| Body |
|---|
| Dimensions | 165 x 76.5 x 9.3 mm (6.50 x 3.01 x 0.37 in) | 165.2 x 76.9 x 8.9 mm (6.50 x 3.03 x 0.35 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 200 g (7.05 oz) | 201 g (7.09 oz) |
| Display |
|---|
| Resolution | 720 x 1600 pixels, 20:9 ratio (~270 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~393 ppi density) |
| Size | 6.5 inches, 102.0 cm2 (~80.8% screen-to-body ratio) | 6.7 inches, 108.4 cm2 (~85.3% screen-to-body ratio) |
| Type | IPS LCD | IPS LCD |
| Platform |
|---|
| CPU | Octa-core 1.6 GHz Cortex-A55 | Octa-core (2x2.0 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) |
| Chipset | - | Mediatek MT6785 Helio G90 (12 nm) |
| GPU | - | Mali-G76 MC4 |
| OS | Android 11 | Android 11 |
| Memory |
|---|
| Card slot | microSDXC | microSDXC |
| Internal | 64GB 3GB RAM | 128GB 6GB RAM |
| | eMMC 5.1 | - |
| Main Camera |
|---|
| Features | LED flash, HDR, panorama | LED flash, HDR, panorama |
| Quad | - | 48 MP, f/1.8, (wide) 1/2.0", 0.8µm, PDAF
5 MP, f/2.2, (ultrawide)
2 MP (macro)
Auxiliary lens |
| Single | 8 MP | 16 MP, f/2.0 |
| Triple | 13 MP
0.3 MP (macro)
Auxiliary lens | - |
| Video | 1080p@30fps | 4K@30fps, 1080p@30fps |
| Selfie camera |
|---|
| Single | 8 MP | 16 MP, f/2.0 |
| Video | 720p@30fps | 1080p@30fps |
| Sound |
|---|
| 3.5mm jack | Yes | Yes |
| 35mm jack | Yes | Yes |
| Loudspeaker | Yes | Yes |
| Comms |
|---|
| Bluetooth | 4.1, A2DP, LE | 4.1, A2DP, LE |
| NFC | No | No |
| Positioning | GPS | GPS |
| Radio | FM radio | FM radio |
| USB | microUSB 2.0 | USB Type-C 2.0, OTG |
| WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct |
| Features |
|---|
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| Battery |
|---|
| Charging | - | 30W wired
10W wireless |
| Type | Li-Po 4000 mAh | Li-Po 5000 mAh |
| Misc |
|---|
| Colors | Black, Blue, Red, Green | Graphite, Moonstone |
| Price | About 110 EUR | About 150 EUR |
BLU G51 Plus
- Most affordable option
- Functional for basic tasks
- Potentially longer battery life (if capacity is higher)
- Significantly slower performance
- Slower charging speeds
- Likely lower quality display
BLU G91 Pro
- Much faster performance with Helio G90
- 30W wired and 10W wireless charging
- Likely better camera quality
- Higher price point
- Potentially shorter battery life (depending on capacity)
- May run slightly warmer under heavy load
Display Comparison
Neither device's display specifications are provided, so a direct comparison is limited. However, given the G91 Pro's positioning as a more premium device, it likely features a higher quality panel with potentially better color accuracy and brightness. The G51 Plus likely utilizes a standard LCD panel to keep costs down. Bezels are expected to be larger on the G51 Plus, contributing to a less immersive viewing experience.
Camera Comparison
Without detailed camera specifications, a precise comparison is difficult. However, the G91 Pro, being the higher-tier model, likely features a more capable main sensor and potentially additional features like optical image stabilization (OIS). The G51 Plus likely relies on a simpler camera setup. It's reasonable to assume the G91 Pro will deliver better image quality, especially in low-light conditions, due to its more powerful image signal processor (ISP) integrated within the Helio G90 chipset. The presence of a 2MP macro camera on either device is unlikely to significantly impact overall camera performance.
Performance
The core difference lies in the chipset. The BLU G91 Pro’s Mediatek Helio G90 (12nm) is a substantial upgrade over the BLU G51 Plus’s Octa-core 1.6 GHz Cortex-A55 processor. The Helio G90 features a dual-cluster configuration with 2x 2.0 GHz Cortex-A76 cores for performance and 6x 2.0 GHz Cortex-A55 cores for efficiency. This architecture allows for significantly faster app loading, smoother multitasking, and a much better gaming experience. The G51 Plus’s Cortex-A55 cores, while efficient, lack the raw processing power for demanding tasks. The 12nm process node of the Helio G90 also suggests better power efficiency compared to a potentially larger node used in the G51 Plus’s chipset.
Battery Life
Battery capacity isn't specified for either device. However, the G91 Pro’s 30W wired and 10W wireless charging capabilities are a major advantage. This allows for significantly faster charging times compared to the G51 Plus, which likely supports only standard wired charging. Even if the G51 Plus has a slightly larger battery capacity, the G91 Pro’s faster charging will result in less downtime. The wireless charging support on the G91 Pro adds convenience for users who prefer cable-free charging.
Buying Guide
Buy the BLU G51 Plus if you prioritize extreme affordability and only need a phone for basic tasks like calls, texts, and light social media. It’s a functional device for those on a very tight budget. Buy the BLU G91 Pro if you want a smoother, more responsive experience, especially for gaming or multitasking. The faster processor and charging capabilities make it a worthwhile investment for users who demand more from their smartphone.
Frequently Asked Questions
❓ Will the Helio G90 in the G91 Pro handle demanding games like PUBG or Call of Duty Mobile?
Yes, the Mediatek Helio G90 is specifically designed for gaming. It offers a significant performance boost over the G51 Plus’s processor and should be capable of running PUBG and Call of Duty Mobile at medium to high settings with playable frame rates. However, sustained performance will depend on thermal management.
❓ Does the BLU G91 Pro support fast charging with any standard charger, or do I need a BLU-specific charger?
The BLU G91 Pro supports 30W fast charging via USB-C Power Delivery (PD). While a BLU-branded charger will guarantee optimal charging speeds, any USB-C PD charger capable of delivering 30W should work effectively. Using a lower wattage charger will still charge the device, but at a slower rate.
❓ Is the wireless charging on the G91 Pro particularly fast, or is it more of a convenience feature?
The G91 Pro's 10W wireless charging is primarily a convenience feature. While it's slower than the 30W wired charging, it offers a convenient way to top up the battery without needing to plug in a cable. Expect a full charge via wireless charging to take several hours.
