HMD is reportedly preparing the Asha 305 Pro, a slightly upgraded version of the Asha 305 that launched in July. Leaked marketing images and specifications reveal improvements to the camera, storage, and durability.

HMD Asha 305 Pro leaked specifications
- Display: 5-inch FWVGA Fluid LCD
- Chipset: Unisoc T137
- RAM: 2GB
- Storage: 32GB
- Rear camera: 5MP with LED flash
- Front camera: 2MP with LED flash
- Battery: 2,500mAh, removable
- OS: Pulse OS
- Connectivity: LTE, Wi-Fi, Bluetooth 4.2
- Other features: 3.5mm headphone jack
- Durability: IP52 dust and splash resistance
- Colors: Black, Pink
Compared with the standard Asha 305, the Pro model reportedly gets a higher-resolution rear camera, an LED flash for the front camera, twice the storage, and an IP52 rating.

The phone is powered by the Unisoc T137 chipset and runs Pulse OS. It also supports LTE, Wi-Fi, Bluetooth 4.2, and includes a removable 2,500mAh battery.
The leaked images show the device in black and pink. HMD has not officially announced the Asha 305 Pro, so its final specifications, price, and launch date remain unconfirmed.