Walton Primo EF4 (2016)
The manufacturer offers this phone with a 5 inch TFT display, a Spreadtrum SC7731G chipset, and 512 MB of RAM.
But wait, there's more to uncover! Keep reading!
Table of Contents
- Walton Primo EF4 specifications
- Weight, dimensions, colors
- System, chipset, performance
- Display type, size, resolution
- Memory, storage
- Cameras, flash
- Connectivity, network, wireless
- Battery type, capacity, charger
- Features, sensors, specials
- Verdict, pros and cons
This article shares our personal experiences and thoughts about using the Walton Primo EF4 smartphone. We hope to offer helpful insights to others interested in this device.
Walton Primo EF4 specifications
| Brand | Walton |
|---|---|
| Name | Primo EF4 |
| Model | PREF4 |
| Release date | 2016 |
Weight, dimensions, colors
| Weight | 5.47 oz |
|---|---|
| Dimensions | 5.71 x 2.89 x 0.41 inch |
| Colors | black, white |
| SIM type | Micro SIM |
The weight of the Walton Primo EF4 is still considered to be lightweight and portable. A micro SIM is larger than the current standard Nano SIM card but smaller than the older SIM card size.
System, chipset, performance
| OS version | Android OS v6.0 (Marshmallow) |
|---|---|
| SoC | Spreadtrum SC7731G |
| CPU | Quad-core 1.2 GHz Cortex-A7 |
| GPU | Mali-400 MP2 |
| Performance | AnTuTu v9: 22307 |
The Walton Primo EF4 comes with Android OS v6.0 (Marshmallow) out of the box. Google regularly releases new versions of Android. They have new features, improvements, and security updates. The quad-core mobile CPU can provide fast and efficient performance for mobile games. Many people consider ARM Mali GPUs a good option for mobile devices. AnTuTu measures and evaluates the performance of different hardware components of a device.
Display type, size, resolution
| Display type | TFT |
|---|---|
| Screen size | 5 inch |
| Resolution | 480 x 854 px |
| Multitouch support | yes |
This 5 inch smartphone comes with a TFT display. The 5 inch display make this smartphone pocket-friendly. The display size is the diagonal distance from one corner of the screen to the opposite corner.
Memory, storage
| RAM | 512 MB |
|---|---|
| Internal storage | 8 GB |
| Memory card slot | microSD |
512 MB of RAM is not typically considered to be enough for a smartphone. The needed RAM amount for good performance depends on factors. These include the OS, the apps, and the services we use. If we use our smartphones for basic tasks like calling, texting, and browsing the web, 32 GB may be sufficient for our needs. We can expand the internal storage of the Primo EF4 (8 GB) by using a compatible microSD card.
Cameras, flash
| Main camera | 5 MP, 2592 x 1944 px, autofocus |
|---|---|
| Flash | LED |
| Selfie camera | 2 MP |
This single camera can be enough for many smartphone users, it depends on their photography needs and preferences. The Primo EF4 comes with a basic camera setup and lacks any advanced features.
Connectivity, network, wireless
| GSM 2G bands | 850 / 900 / 1800 / 1900 |
|---|---|
| Network coverage | 2G / 3G |
| Wi-Fi | Wi-Fi 802.11 b/g/n |
| Bluetooth | v4.0, A2DP |
| GPS | A-GPS |
| NFC | no |
| FM radio | yes |
| USB | microUSB 2.0 |
| Headphone | 3.5 mm jack |
Compared to modern 4G and 5G networks, 3G networks are much slower. The Primo EF4 supports the latest Wi-Fi standards. We can use Bluetooth to connect our Primo EF4 smartphone to many Bluetooth devices. The Primo EF4 has a GPS receiver. Many fitness and activity tracking apps rely on GPS. It is used to accurately measure and record outdoor activities. The phone isn't NFC (Near Field Communication) capable. NFC is not essential for basic phone functionality, but it can be useful. The 3.5 mm headphone jack allows us to connect wired headphones or earphones to the device.
Battery type, capacity, charger
| Type | Li-Ion 2300 mAh |
|---|
The Li-Ion 2300 mAh battery gives the smartphone a good battery backup. The Li-ion is a low maintenance battery. It does not need periodic full discharge. We can simply buy a new battery from the open market and interchange it by ourselves.
Features, sensors, specials
| Sensors | accelerometer |
|---|---|
| Specials | Dual SIM |
Today, smartphones come with many sensors. They help make the user experience better. The Primo EF4 smartphone has an accelerometer. Dual SIM is great for businesses. They want to give staff a device with separate numbers and bills for personal and business use.
Verdict, pros and cons
Every phone has its strengths and weaknesses, and this Walton phone is no exception. As with any device, there are aspects that shine and others that fall short. By examining both sides, we can paint a complete picture of what this phone has to offer. Let's explore its standout features and areas for improvement. Remember, this is just my opinion, and yours might be different.
Pros
- microSD slot
- Dual SIM support
Cons
- weak performance
- TFT display
- limited-size screen
- insufficient memory
- insufficient internal storage
- single camera setup
- no OIS function
- no 4G support
- no 5G support
- no NFC feature
- no Type-C USB port
- low-capacity battery
- no digital compass
- no fingerprint reader
Please let us know if you find incorrect information or something isn't working. Also, tell us if you have a suggestion for improvement.
I'm Lucas Bradley, the founder of the Phone42.com site. I love technology, especially smartphones, and I've been working with tech stuff for more than 20 years. This means I've seen a lot of changes and have learned a bunch about what makes a good phone. On Phone42.com, I look at all kinds of phones. They can be from big, well-known companies or new ones trying to make their mark. I want to help people understand what's new and cool in the world of smartphones, in a way that's easy to get.