| Hardware and OS | BQ Aquaris M5.5 | |
| Operating system | Android 5.1.1 (Lollipop), upgradable to 7.0 (Nougat) | |
| Processor | Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) | |
| Chipset | Qualcomm MSM8939 Snapdragon 615 (28 nm) | |
| GPU | Adreno 405 | |
| Internal memory | 16 GB, 2/3 GB RAM
32 GB, 3 GB RAM | |
| External memory | microSD, up to 64 GB | |
| Display | BQ Aquaris M5.5 | other phones |
| Type | IPS LCD | |
| Size | 5.5" inc | |
| Resolution | 1080 x 1920 px | |
| Protection | Asahi Dragontrail Glass | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 72.8% | |
| Display area | 83.4 cm2 | |
| Display aspect ratio | 16:9 (height:width) | |
| Pixel Density | 401 PPI | |
| Colors | 16M | |
| Connectivity | BQ Aquaris M5.5 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 900 / 2100 | |
| 4G Network | LTE band 1(2100), 3(1800), 7(2600), 20(800) | |
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Micro-SIM, dual stand-by) | |
| Bluetooth | 4.0, A2DP | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS | |
| NFC | Yes | |
| Speed | HSPA, LTE | |
| USB | microUSB 2.0, USB On-The-Go | |
| Camera | BQ Aquaris M5.5 | other phones |
| Main camera | 13 MP, Single | |
| Specs | 13 MP, f/2.0, 1/3', 1.12µm, AF | |
| Features | Dual-LED flash, panorama, HDR | |
| Video | 1080p@30fps | |
| Selfie camera | 5 MP, Single | |
| Multimedia | BQ Aquaris M5.5 | other phones |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Design | BQ Aquaris M5.5 | other phones |
| Colors | Black, White | |
| Dimensions | 151.8 x 75.5 x 8.4 mm | |
| Weight | 162 g | |
| Battery | BQ Aquaris M5.5 | other phones |
| Battery capacity | 3620 mAh, Non-removable Li-Po | |
| Other | BQ Aquaris M5.5 | other phones |
| SAR | SAR EU - 0.40 W/kg (head), 0.80 W/kg (body) | |
| Release date | 2015 | |
| Sensors | Accelerometer, gyro, proximity, compass | |
