Redmi 12 Smartphone (4GB RAM, 128GB, Jade Black) Preowned

A Detailed Review of the Used Redmi 12 with 4GB RAM, 128GB Storage, and Available in the Stylish Jade Black Color.

Redmi 12 is one amazingly affordable smartphone with a serious and impressive mix of performance, display quality, and battery life. In this in-depth review, we are going to talk about each and every feature of the Redmi 12, which comes with 4GB RAM and a huge 128GB internal storage, in the fashionable Jade Black color.

We are going to give a close look at the design appeal, overall performance features, camera quality, battery life, software experience, and finally determine its overall value for the price it has to offer to the users.

Design & Build Quality of Redmi 12 
The Redmi 12 boasts a glass-back premium design, a huge improvement from the plastic-backed predecessors that preceded it in the same category. This not only adds to the looks but also raises the overall hand feel of the phone. The stunning Jade Black color variant adds some class and sophistication to the phone, giving it an impression that makes it feel far more premium and costly than its price would indicate. The phone also boasts a flat-edged body that not only appears trendy but also adds to the grip, making it comfortable to hold. It weighs 198.5 grams, which feels good, heavy, and well-balanced, giving it a sense of solidity in hand without feeling too heavy.

The IP53 rating gives assurance of protection against dust particles and small splashes of light water, and thus it is a necessary feature that contributes significantly to the overall lifespan of the device. It is, however, important to note that because this particular product is a second-hand device, users need to be cautious to ensure that they inspect for any visible scratches or cracks on the glass back and display that may be present on the device. This is especially so because second-hand devices are likely to exhibit a number of signs of use and wear and tear from previous use.

Presentation and Observation Experience of Redmi 12
Size: 6.79-inch Full HD+ IPS LCD

Resolution: 2460 × 1080 pixels

Refresh Rate: 90Hz

Brightness: 550 nits (peak)

Protection: The stunning and revolutionary Corning Gorilla Glass

Redmi 12 offers one of the widest screens out there in the budget category, which in the end makes it a great pick for a whole host of activities including multimedia usage, immersive gaming, and smooth browsing. Through its stunning Full HD+ screen resolution, customers are able to appreciate incredibly clear and crisp graphics that make viewing more enjoyable overall. The device also features a 90Hz refresh rate, which not only provides smoother scrolling but also dramatically enhances the user interface experience when compared to the traditional standard 60Hz screens common in other products.

The color accuracy and contrast level of this specific LCD panel are rather good, given its class, but it cannot attain the kind of deep blacks seen in an AMOLED panel. The 550 nits of maximum brightness is usually good enough for indoor usage as well as general outdoor use, but in direct sunlight exposure, it becomes slightly difficult to see and less than optimal.

Performance & Hardware of Redmi 12
Processor: MediaTek Helio G88 (12nm)

CPU: Octa-core (2x Cortex-A75 at 2.0GHz + 6x Cortex-A55 at 1.8GHz)

GPU: Mali-G52 MC2

RAM: 4GB LPDDR4X (with virtual RAM expansion up to 8GB)

Storage: 128GB eMMC 5.1 (expandable up to 1TB via microSD)

Daily Performance Appraisal
The Helio G88 processor, while perhaps not the most powerful processor today in the market, has the functionality to manage a string of daily functions with ease. The daily functions are social media browsing, smooth video streaming, and the capacity to keep a number of applications simultaneously using multitasking. While the 4GB of RAM that is pre-installed on the device might appear to be lacking to highly resource-demanding users, there is a feature that is helpful called virtual RAM expansion. This feature is a cutting-edge one that helps with overall performance by utilizing a part of the device's storage as if it were extra RAM, thus helping with efficiency and user experience.

For casual gaming, the device can handle several games, like common ones like Free Fire, Subway Surfers, and Clash Royale, and they all run without much performance lag. However, for heavy games like Call of Duty: Mobile or BGMI, the players will need to set the settings to low or medium so that they can experience a playable and smooth frame rate while playing.

When it comes to storage capacity, the internal memory of 128GB is more than sufficient to meet the needs of most users. Additionally, the presence of a microSD slot provides the opportunity for expansion, allowing users to increase their storage capacity by up to an impressive 1TB, which is undeniably a significant advantage for anyone looking to store more data.

Camera Performance
Rear Cameras:
50MP Main Camera (f/1.8)

8MP Ultra-Wide Lens with f/2.2 and 120° field of view

2MP Macro Lens (f/2.4)

Front Facing Camera:
8MP Selfie Camera (f/2.0)

Photography Performance
Daylight Photography:
The 50MP primary sensor is capable of delivering high-quality, high-resolution, and sharp photographs in bright conditions. The color is unprocessed, and dynamic range is respectable, though one can expect a little marginal overexposure under very bright lighting conditions.

Low-light photography
In low light, the performance is slightly less with some noise creeping in at darker spots. The Night Mode does help make things better but does take an additional second to process.

An Ultra-Wide Lens:
The 8MP ultra-wide sensor is actually made to have a much wider field of view so that the shots can be much wider and inclusive. But the trade-off with that is giving up a little bit of sharpness compared to the main sensor.

A. Macro Lens
The 2MP macro camera, although performing well, is graded to be of average quality. It must be considered that it needs good lighting conditions to take good close-up pictures effectively.

Selfie Camera:
The 8MP front-facing camera can take decent-quality selfies when snapped in good lighting conditions, providing bright and clear photographs. However, when snapped in low-light conditions, the texture of the selfie can be slightly soft and can be grainy to touch, and the image quality is not up to the mark.

Video Recording
1080p at 30fps (rear and front)

No 4K support

Electronic Image Stabilization (EIS) is not supported

While the video quality is excellent, the lack of stabilization causes the risk of the footage being slightly shaky if it is recorded while moving.

Battery Life & Charging
Battery Capacity: 5000mAh

Charge speed: 18W quick charge

Charger Included: 22.5W included in the pack

Port: USB Type-C

One of the most appealing and strongest aspects of the Redmi 12, which is very apparent, is certainly its amazing battery life. The device is powered by a robust 5000mAh battery that has the excellent attribute of being able to quite easily last for a whole day even under heavy usage conditions, such as video streaming, browsing social media websites, and video gaming.

The 18W fast charging support is fine given the device's price range but given the consideration that because of the high capacity battery, it generally takes around 2 hours altogether to get it fully charged.

Software & User Experience
Operating System: Android 13

User Interface: MIUI 14

The MIUI 14 software offers rich feature-based customization options such as themes, gestures, and an always-on display. But the availability of pre-installed bloatware is a negative point, though most of it can be uninstalled.

MIUI does have ads too, and they can be turned off but involve a bit of tinkering.

Connectivity and Other Features Network: 4G LTE (No 5G support)

Wi-Fi: Dual-band 802.11ac

Bluetooth: v5.3

GPS: GPS, GLONASS, BDS, Galileo

Fingerprint Sensor: Side-mounted

IR Blaster: Yes

FM Radio: Yes, it is.

Audio Jack: 3.5 millimeter.

The side-mounted fingerprint reader not only operates rapidly but is also highly reliable, and thus the users can easily and rapidly unlock the devices without any delay. Furthermore, the availability of the IR blaster makes the users easily control other electronic devices such as TVs, air conditioners, and many other home appliances with ease, and this aspect stands out as unique and useful in this particular price range. The availability of the 3.5mm headphone jack is also a big plus point, especially for those users who have a strong liking towards wired audio connectivity, and this offers an old-school and sometimes preferred type of listening capability.

Advantages and Disadvantages

Advantages:

✔️ A modern design with a premium glass back

✔️ Huge 6.79-inch FHD+ screen with 90Hz refresh rate

✔️ Excellent battery life (5000mAh) ✔️ A decent 50MP main camera that holds up well enough for taking photographs in daylight situations. ✔️ Up to 1TB of expandable storage capacity ✔️ Side-mounted fingerprint sensor & IR blaster The box includes a charger, which provides an incredible 18W fast charging. Disadvantages At present, no support exists for 5G technology. ❌ Overall low-light photography performance ❌ No 4K video recording, no EIS stabilization ❌ MIUI ads and bloatware It takes a long time to charge to its maximum capacity. Final Verdict: After considering and comparing options, is it worth spending money on the second-hand Redmi 12? The Redmi 12 (4GB RAM, 128GB, Jade Black) is excellent value for money, especially for those who want a cheap phone with a large screen, decent cameras, and decent battery life. But since this is a second-hand phone, ensure that you inspect for scratches, battery condition, and functioning of internal components prior to buying. Purchasing from a reputable seller with a return policy is strongly advised. For light to moderate users, the Redmi 12 would be an excellent choice and a good option. But if you find that you require features such as 5G, better games, or better cameras, it may be worth trying out other devices that better address those specific needs.