BLU J4

The BLU J4 is suited to buyers looking for a basic phone with a compact display and straightforward features. Its main trade-off is the 2200 mAh battery, whose modest capacity is a limitation for anyone who needs a large energy reserve. The phone weighs 158 g and has a 5.5-inch IPS LCD display with 720 × 1440 px resolution and 293 ppi. It runs Android 8.1.

A quad-core Cortex-A7 processor clocked at 1.3 GHz works with 1 GB of RAM. That is limited memory, and the 32 GB of storage may also feel restrictive. Storage is expandable, which offers room to add more capacity. Both the rear and front cameras have 8 MP resolution, and video recording is 720p at 30 fps. These are basic camera specifications for buyers who do not put photography or video at the top of their list.

Connectivity includes Dual Nano-SIM, Wi-Fi 802.11 b/g/n, Bluetooth 4.1 and GPS. There is also FM radio and a 3.5 mm audio jack for listening with wired headphones. Overall, the BLU J4 is a simple phone with expandable storage and familiar connections, but little RAM and a small-capacity battery. It makes sense for someone seeking a no-frills device whose needs fit those limits. Buyers who need ample memory or a higher-capacity battery should look elsewhere.