Product details

Description

What Samsung built this phone for

The Samsung Galaxy J4 launched in May 2018 as one of the most accessible Android smartphones Samsung offered, a simple, straightforward device for buyers who needed reliable calls, texts, WhatsApp and basic apps without spending much. A Super AMOLED display at this price was a genuine differentiator. It also offered a removable battery and a dedicated microSD slot, two practical features that many newer budget phones have dropped.

Display

5.5-inch Super AMOLED. At this price point, AMOLED is uncommon. it gives noticeably better blacks, contrast and colour than LCD screens you'd typically see on budget phones. Resolution is 720x1280 HD, which is appropriate for the screen size.

Performance

Exynos 7570 quad-core with 2GB or 3GB RAM. Handles calls, WhatsApp, social media and basic browsing without issue. Not designed for gaming or demanding apps. Expect occasional slowdown on heavier multitasking.

Battery and expandability

3000mAh removable battery. The removable design is a practical advantage, a spare battery can be swapped in seconds. MicroSDXC dedicated slot supports up to 512GB. Both features are absent from most modern budget phones.

Honest limitations

  • Android 8.0 Oreo - no further OS updates available
  • No 5G - 4G LTE only
  • No NFC, Google Pay not supported
  • No fingerprint scanner
  • Basic 13MP camera - adequate for everyday photos, not photography
  • Micro-USB connector, not USB-C
  • Performance is basic not suitable for gaming or heavy apps
Specification
  • Released May 2018
  • Display 5.5" Super AMOLED, 720x1280 (HD), 267ppi
  • Chipset Samsung Exynos 7570 Quad-core 1.4GHz (14nm)
  • RAM 2GB or 3GB
  • Storage 16GB or 32GB + dedicated microSDXC slot (up to 512GB)
  • Main Camera 13MP f/1.9, LED flash, autofocus
  • Front Camera 5MP f/2.2, LED flash
  • Video 1080p@30fps
  • Battery 3000mAh Li-Ion, removable
  • Charging Standard (no fast charge)
  • 5G No -4G LTE only
  • Wi-Fi 802.11 b/g/n, 2.4GHz only
  • NFC No, Google Pay not supported
  • Bluetooth 4.2
  • Connector Micro-USB 2.0
  • SIM Dual Micro-SIM
  • Fingerprint No
  • Headphone jack Yes - 3.5mm included
  • FM Radio Yes
  • OS Android 8.0 Oreo (no further updates available)
  • Dimensions 151.7 x 77.2 x 8.1mm, 175g
  • Colours Black, Gold, Orchid Gray

Recommended For

✅ GREAT CHOICE IF YOU...
- Need the most affordable working Android phone
- Want a removable battery you can swap out
- Need expandable storage via microSD
- Are buying a simple first phone or backup device

⚠️ CONSIDER UPGRADING IF YOU...
- Need NFC for Google Pay
- Want more than basic Android 8.0 software
- Need a fingerprint scanner
- Plan to use demanding apps or games

Condition Guide

Grade A (Excellent)

Minimal to no cosmetic marks. Looks and feels like a nearly new device. Ideal if appearance matters alongside performance.

Grade B (Very Good)

Light micro-scratches on the rear or frame, visible under close inspection. Screen remains in excellent condition. Most buyers save money here with barely noticeable signs of use once in a case.

Grade C (Fair)

Clearly visible scuffs or scratches on the body. Screen remains fully functional and crack-free. Best value if performance matters more than appearance.

✔ All grades are fully tested, IMEI verified, securely data-wiped and covered by our 12-month warranty.

Frequently Asked Questions

1- Is the Samsung Galaxy J4 still worth buying in 2026?
For basic use, yes. Calls, WhatsApp, texts and light social media all work fine. It runs Android 8.0 and will not receive further updates, so some newer apps may not install. If you need a simple, affordable phone for everyday use and are not concerned about the latest software, it still delivers.

2- Does the Galaxy J4 support Google Pay?
No. The Galaxy J4 does not have NFC, which is required for Google Pay and contactless payments. If mobile payments are important to you, consider the Galaxy A06 or above, all of which include NFC.

3- Can I expand the storage on the Galaxy J4?
Yes. It has a dedicated microSDXC slot (separate from the SIM slots) supporting up to 512GB. A memory card is not included but is highly recommended given the limited internal storage.

4- Does it have a removable battery?
Yes. The 3000mAh battery can be removed and replaced without tools. This is a genuine practical advantage over most modern phones where the battery is sealed.

5- Is it unlocked for all UK networks?
Yes. Every device is fully unlocked and works on EE, O2, Vodafone, Three, Sky Mobile, iD Mobile, giffgaff and all other UK virtual networks.

6- What is the battery health guarantee?
All batteries are checked before dispatch. The removable battery also means it can be cost-effectively replaced if needed in the future.

7- Is Grade B worth buying over Grade A?
For most buyers, yes. The J4 is a practical device rather than a fashion item. Grade B saves £5–10 and any cosmetic marks are typically light signs of wear that are barely noticeable in everyday use.

8- Does it have a headphone jack?
Yes. The Galaxy J4 has a standard 3.5mm headphone jack and also includes an FM radio.



What's Included

📱Samsung Galaxy J4 handset: Tested, data-wiped and unlocked
🔌Micro-USB charging cable
📦Generic packaging: Original Samsung retail box is not included
⚡Charger plug not included: A compatible USB charger is available as an add-on at checkout

Delivery & Warranty

UK Delivery

Standard tracked delivery: 2–3 working days. Express next-day delivery available at checkout for orders placed before 3pm Monday–Friday.

Returns

14-day returns. If your device isn't exactly as described or you change your mind, contact our team .

Warranty

All devices are covered against faults and hardware failures including battery issues, screen faults and connectivity problems that are not the result of accidental damage. We repair or replace at no cost to you. Activate your warranty at warranty activation