Infinix S4 Rear Battery Back Door Housing Replacement Cover Grey Verified Fit

About this product

This is a replacement rear back body casing (battery back door) built specifically for the Infinix S4, the 6.20-inch IPS LCD phone Infinix released in 2019 with a 156.3 x 75.6 x 7.9mm plastic-back, plastic-frame chassis weighing 161g. The panel is cut to sit over the phone's rear shell, covering the battery compartment beneath and restoring the outer surface after cracking, prying, or wear has damaged the original door. Design cutouts are shaped for the S4's triple rear camera array (13MP + 8MP + 2MP) and the phone's micro USB charging port position, so the housing sits flush against the existing frame rather than requiring modification. This grey finish gives sellers and repair technicians a neutral color option distinct from Infinix's original Nebula Black, Sapphire Cyan, Purple, and Gold factory finishes.

• Cut for the Infinix S4's 13MP + 8MP + 2MP triple rear camera housing
• Matches the S4's 156.3 x 75.6 x 7.9mm frame dimensions
• Sized for a 161g device body, no added bulk beyond the stock panel
• Compatible with the plastic back / plastic frame build of the S4
• Grey finish, distinct from original Nebula Black, Sapphire Cyan, Purple, Gold colorways

How it fits your Infinix S4

Because the S4 ships with a 4000mAh battery sealed behind its rear panel, this back door is shaped to snap over that compartment along the same edge clips as the factory panel, matching the phone's 7.9mm thickness so it doesn't add noticeable bulk in hand. The camera cutout lines up with the triple 13MP+8MP+2MP lens cluster positioned at the top-left of the original rear panel, and the lower edge leaves clearance for the micro USB port. Side cutouts correspond to the volume and power button positions on the plastic frame, and the panel's grey finish is matte enough to show the phone's contours under angled light rather than washing them out. Note the S4 has no wireless charging and no NFC, so the rear housing carries no cutout or antenna consideration for either, making it a straightforward physical shell replacement.

What you should know

This back door fits the Infinix S4 only, it is not interchangeable with the Infinix S4 Pro, Note 4/4 Pro, or Hot 8, which use different rear panel dimensions and camera layouts even though the model names sound similar. This is a cosmetic and structural rear shell replacement, not a battery: it covers and protects the battery compartment but does not include a new battery cell, so a swollen or degraded 4000mAh battery underneath will still need separate replacement. Fitting this door involves opening the phone's rear housing and working near the battery and internal ribbon cables, which can affect your device's manufacturer warranty if it's still active, so we recommend having it fitted by a qualified phone repair technician rather than doing it yourself if you're not experienced with disassembly. The grey color is an aftermarket option and will not exactly match Infinix's original Nebula Black, Sapphire Cyan, Purple, or Gold finishes if you're trying to keep a factory-color look.

Buying with confidence

Dastyab.pk ships this Infinix S4 rear back door nationwide across Pakistan and accepts returns within 7 days on unused, uninstalled items, so check the fit against your device before installation and keep the original packaging in case you need to send it back. Listing details are checked against the Infinix S4's published specifications for screen, dimensions, camera, and battery, so you're ordering against real device data rather than a generic template.