Google Pixel 7a vs BLU S91: A Deep Dive into Performance and Value
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🏆 Quick Verdict
For most users, the Google Pixel 7a is the superior choice. Its Google Tensor G2 chipset delivers significantly faster performance and superior image processing, justifying the price difference. However, the BLU S91 remains a viable option for those prioritizing absolute affordability and basic smartphone functionality.
| PHONES | ||
|---|---|---|
| Phone Names | BLU S91 | Google Pixel 7a |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700 / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 12, 13, 17, 28, 66 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 71 - GWKK3, G0DZQ |
| 5G bands | - | 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 41, 48, 66, 71, 77, 78 SA/NSA/Sub6 - GWKK3 |
| Speed | HSPA, LTE | HSPA, LTE, 5G |
| Technology | GSM / HSPA / LTE | GSM / HSPA / LTE / 5G |
| - | 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 76, 77, 78, 79 SA/NSA/Sub6 - GHL1X, G82U8 | |
| Launch | ||
|---|---|---|
| Announced | 2022, June 24 | 2023, May 10 |
| Status | Available. Released 2022, June 24 | Available. Released 2023, May 10 |
| Body | ||
|---|---|---|
| Build | - | Glass front (Gorilla Glass 3), aluminum frame, plastic back |
| Dimensions | 164.8 x 76.3 x 8.9 mm (6.49 x 3.00 x 0.35 in) | 152 x 72.9 x 9 mm (5.98 x 2.87 x 0.35 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + eSIM |
| Weight | 202 g (7.13 oz) | 193.5 g (6.84 oz) |
| - | IP67 dust/water resistant (up to 1m for 30 min) | |
| Display | ||
|---|---|---|
| Protection | - | Corning Gorilla Glass 3 |
| Resolution | 720 x 1600 pixels, 20:9 ratio (~270 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~429 ppi density) |
| Size | 6.5 inches, 102.0 cm2 (~81.1% screen-to-body ratio) | 6.1 inches, 90.7 cm2 (~81.8% screen-to-body ratio) |
| Type | IPS LCD | OLED, HDR, 90Hz |
| - | Always-on display | |
| Platform | ||
|---|---|---|
| CPU | Octa-core (4x2.0 GHz Cortex-A53 & 4x1.5 GHz Cortex-A53) | Octa-core (2x2.85 GHz Cortex-X1 & 2x2.35 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) |
| Chipset | Mediatek MT6762G Helio G25 (12 nm) | Google Tensor G2 (5 nm) |
| GPU | PowerVR GE8320 | Mali-G710 MP7 |
| OS | Android 11 | Android 13, upgradable to Android 15, up to 5 major Android upgrades |
| Memory | ||
|---|---|---|
| Card slot | microSDXC | No |
| Internal | 128GB 4GB RAM | 128GB 8GB RAM |
| - | UFS 3.1 | |
| Main Camera | ||
|---|---|---|
| Dual | - | 64 MP, f/1.9, 26mm (wide), 1/1.73", 0.8µm, dual pixel PDAF, OIS 13 MP, f/2.2, 120˚ (ultrawide), 1.12µm |
| Features | LED flash, HDR, panorama | Dual-LED flash, Pixel Shift, Auto-HDR, panorama |
| Single | 13 MP | - |
| Triple | 13 MP, (wide), PDAF 0.3 MP (macro) Auxiliary lens | - |
| Video | 1080p@30fps | 4K@30/60fps, 1080p@30/60/120/240fps, OIS |
| Selfie camera | ||
|---|---|---|
| Features | - | HDR, panorama |
| Single | 13 MP | 13 MP, f/2.2, 20mm (ultrawide), 1.12µm |
| Video | 1080p@30fps | 4K@30fps, 1080p@30fps |
| Sound | ||
|---|---|---|
| 3.5mm jack | Yes | No |
| 35mm jack | Yes | No |
| Loudspeaker | Yes | Yes, with stereo speakers |
| Comms | ||
|---|---|---|
| Bluetooth | 5.0, A2DP, LE | 5.3, A2DP, LE |
| NFC | No | Yes |
| Positioning | GPS | GPS, GLONASS, GALILEO, BDS, QZSS, NavIC |
| Radio | FM radio | No |
| USB | USB Type-C 2.0, OTG | USB Type-C 3.2 |
| WLAN | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6e, tri-band |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass, barometer |
| Battery | ||
|---|---|---|
| Charging | - | 18W wired, PD3.0 7.5W wireless |
| Type | Li-Po 5000 mAh | Li-Po 4385 mAh |
| Misc | ||
|---|---|---|
| Colors | Black, Green | Charcoal, Snow, Sea, Coral |
| Models | - | GWKK3, GHL1X, G0DZQ, G82U8 |
| Price | About 170 EUR | € 179.90 / $ 150.00 / £ 170.00 / ₹ 25,980 |
BLU S91
- Significantly faster performance with the Tensor G2 chipset
- Superior camera quality and image processing
- Brighter and more vibrant display
- Higher price point
- May be overkill for basic users
Google Pixel 7a
- Extremely affordable price
- Functional for basic smartphone tasks
- Potentially decent battery life for light usage
- Slow performance with the Helio G25 chipset
- Inferior camera quality
- Likely lower-quality display
Display Comparison
The Pixel 7a boasts a significantly brighter display, reaching a measured 1070 nits, compared to the BLU S91’s unspecified brightness. This translates to better visibility outdoors. While the BLU S91’s panel technology isn’t specified, it’s likely a standard LCD, lacking the color accuracy and potentially the adaptive refresh rates found in the Pixel 7a’s OLED panel. The Pixel 7a’s display is a clear advantage for media consumption and everyday use.
Camera Comparison
The Pixel 7a’s camera system is a major differentiator. While specific sensor details are missing for both, Google’s computational photography prowess, powered by the Tensor G2, elevates image quality significantly. The Pixel 7a excels in low-light photography and offers features like Magic Eraser and Photo Unblur. The BLU S91’s camera, while functional, will likely struggle in challenging lighting conditions and lack the advanced processing capabilities of the Pixel 7a. Ignoring the likely low-resolution macro lens on the BLU S91, the Pixel 7a’s image processing is the key advantage.
Performance
The performance gap between these devices is substantial. The Google Pixel 7a’s Tensor G2, built on a 5nm process, features a tri-cluster configuration with high-performance Cortex-X1 cores, offering a significant leap in processing power over the BLU S91’s Mediatek Helio G25. The Helio G25, utilizing a 12nm process and older Cortex-A53 cores, is designed for basic tasks. The Tensor G2’s architecture allows for faster app loading, smoother multitasking, and more demanding gaming experiences. The Pixel 7a also benefits from potentially faster RAM (likely LPDDR5x) compared to the BLU S91, further enhancing performance.
Battery Life
The Pixel 7a has an endurance rating of 76 hours, suggesting efficient power management despite its advanced features. It supports 18W wired charging with PD3.0 and 7.5W wireless charging. The BLU S91’s battery capacity is unknown, but given its lower-end chipset, it may offer comparable battery life for basic usage. However, the Pixel 7a’s faster charging capabilities and wireless charging support provide added convenience.
Buying Guide
Buy the BLU S91 if you need a functional smartphone for essential tasks like calls, texts, and light social media use, and your budget is extremely limited. You'll be sacrificing performance and camera quality. Buy the Google Pixel 7a if you prioritize a smooth user experience, excellent camera capabilities, and access to Google’s AI-powered features, and are willing to spend more for a premium mid-range experience.