Samsung SM-J330G/DS Galaxy J3 Pro Duos TD-LTE / Galaxy J3 2017 (Samsung J330)
Samsung
About Samsung Galaxy J3 Pro
The Samsung Galaxy J3 Pro presents itself as a compact handset that fits comfortably in the palm, measuring just over 71 mm wide and 142 mm tall with a slim 8 mm profile and a lightweight feel at 139 grams. Its single‑slot SIM tray keeps the design straightforward, while the front is dominated by a 4.97‑inch AM‑OLED panel that delivers vivid colours and deep blacks at a 720 by 1280 pixel resolution, offering a clear view for everyday tasks and media consumption.
Under the hood, the device runs Android 6.0.1 Marshmallow paired with 2 gigabytes of RAM, providing enough responsiveness for standard apps and multitasking without lag. Power comes from a 2600 mAh battery, which, combined with the efficient display and processor, aims to sustain a full day of moderate use. Together, these specifications position the J3 Pro as a modest yet capable option for users seeking a reliable Android experience in a petite form factor.
Unlike the AM‑OLED panel of the base model, this version uses a Color PLS TFT LCD screen that measures 4.99 inches diagonally, a touch larger than the 4.97‑inch display while keeping the same 720×1280 resolution.
It ships with Android 7.1.1 Nougat instead of Android 6.0.1 Marshmallow, houses a 2400 mAh battery (down from 2600 mAh), and its chassis is slightly reshaped to 70.3 × 143.2 × 8.2 mm and weighs 142 grams, making it a bit narrower, taller, thicker and heavier than the original.
Compared with the other J3 Pro Duos variants (SM‑J3119S and SM‑J3110), this model stands out for its LCD display, newer Nougat OS, reduced battery capacity and the subtle dimensional changes, while sharing the same 2 GiB RAM and single‑SIM configuration.
Technical Specifications
All LTE bands (10)
- LTE 1700/2100 MHz (Band 4, AWS)
- LTE 1800 MHz (Band 3)
- LTE 1900 MHz (Band 2, PCS)
- LTE 2100 MHz (Band 1)
- LTE 2600 MHz (Band 7)
- LTE 700 MHz (Band 17)
- LTE 700 MHz (Band 28)
- LTE 800 MHz (Band 20)
- LTE 850 MHz (Band 5)
- LTE 900 MHz (Band 8)
All TD-LTE bands (2)
- TD-LTE 2300 MHz (Band XL) bands
- TD-LTE 2600 MHz (Band 38)
All UMTS bands (5)
- UMTS 1700/2100MHz (Band IV, AWS)
- UMTS 1900MHz (Band II, PCS)
- UMTS 2100MHz (Band I, IMT)
- UMTS 850MHz (Band V, CLR)
- UMTS 900MHz (Band VIII)
All GSM bands (4)
- GSM 1800MHz (B3)
- GSM 1900MHz (PCS, B2)
- GSM 850MHz (B5)
- GSM 900MHz (B8)
Model Variants
2 other phones with the same base model: Samsung Galaxy J3 Pro