OPPO K12X vs OPPO A3X

The OPPO K12x 5G and OPPO A3x 5G share the same processor, display, battery, and charging speed — but differ meaningfully in camera, RAM, and storage performance.

• Both phones feature a 6.67-inch HD+ LCD display with a 120Hz refresh rate and 1,000-nit peak brightness.
• Both run on the MediaTek Dimensity 6300 processor with identical AnTuTu and Geekbench scores; the K12x has more RAM for better multitasking.
• The K12x has a 32MP primary camera and 8MP selfie camera; the A3x has an 8MP rear camera and 5MP front camera.
• The K12x uses faster UFS 2.2 storage and offers up to 256GB; the A3x uses eMMC 5.1 with up to 128GB.
• Both carry IP54 water resistance, MIL-STD-810H durability certification, a 5,100 mAh battery, and 45W SUPERVOOC charging.

You can also buy a new smartphone on Easy EMIs at over 1.5 lakh partner stores across 4,000 cities, including Reliance Digital, Croma, and Vijay Sales. Check your loan eligibility online in minutes so you know exactly what you can get before you step into the store.

The OPPO K12x 5G and OPPO A3x 5G are entry-level 5G phones built on the same MediaTek Dimensity 6300 processor, with identical displays, battery capacity, and 45W SUPERVOOC charging. Both carry IP54 water resistance and MIL-STD-810H military-grade durability certification. Where they differ is in camera quality, RAM, and storage speed — making the K12x the stronger all-rounder and the A3x the leaner, more accessible option for basic everyday use.

You can buy a smartphone through Easy EMIs when your preferred model is eligible and available at a partner store, making it simple to upgrade without paying the full amount upfront. Here is what the process looks like.

• Visit more than 1.5 lakh partner stores across 4,000+ cities, including Jaipur, Lucknow, Kochi, and Bhopal
• Choose your preferred model and use the Bajaj Finance Insta EMI Card or Easy EMI Loan
• Convert the purchase cost into Easy EMIs that suit your monthly budget

➜ Pro tip: Zero down payment is available on select models, so ask the store executive if your chosen smartphone qualifies before you check out.

Both phones are built on the same platform and target the same type of buyer: someone after a reliable first 5G phone without spending much. Three questions come up most consistently.

What is the actual difference between the K12x and A3x?

They share the same processor, display, battery, charging speed, build dimensions, and IP54 rating — which makes them look nearly identical on paper. The real differences are RAM, camera, and storage speed. The K12x offers 6GB or 8GB RAM versus the A3x's 4GB, a 32MP primary camera versus 8MP, an 8MP selfie camera versus 5MP, and faster UFS 2.2 storage versus the A3x's slower eMMC 5.1. For most buyers, these three differences determine which phone fits their needs.

Is the K12x worth buying over the A3x?

For users who take photos, multitask, or store a lot of content, yes. The K12x's 32MP camera and higher RAM make it the more capable phone for everyday use beyond basic calls and browsing. The A3x, however, is a practical choice for first-time smartphone users, students on a tight budget, or anyone whose primary needs are calls, WhatsApp, YouTube, and long battery life — all of which it handles well.

Which phone has the better camera?

The K12x 5G is significantly ahead. Its 32MP f/1.8 main sensor with autofocus produces sharper, more detailed images than the A3x's 8MP f/2.0 shooter, and its 8MP front camera takes cleaner selfies than the A3x's 5MP sensor. The A3x's camera is adequate for WhatsApp photos and video calls, but is not suited for anyone who photographs regularly.

Benchmark scores for the shared MediaTek Dimensity 6300 indicate comparable processing capability for everyday apps, multitasking, and casual gaming. Actual scores can vary with software, temperature, and testing conditions.

-> Pro tip: Benchmark scores measure the processor in isolation. In daily use, the K12x's 6GB or 8GB RAM means fewer app reloads and smoother switching between multiple open apps — something these scores do not capture.

Bajaj Finance offers two financing options at over 1.5 lakh partner stores across 4,000 cities in India. Here is how they compare:

How to choose? Both options require you to be physically present at a partner store. The Insta EMI Card is ideal for shoppers who want to purchase across multiple categories over time. The Easy EMI Loan suits buyers looking to finance a higher-value purchase in a single transaction.

Also explore the latest offers. You may find a great deal on a model that matches your needs.

The process is simple and typically takes 10 to 15 minutes once you are at the store.

1. Browse models on Bajaj Mall: Compare options on Bajaj Mall before visiting a store.
2. Find a partner store near you: Use the Bajaj Finance store locator to find a nearby partner outlet such as Croma, Vijay Sales, or other authorised retailers.
3. Check the model in person: Check the key features, specifications, size, and performance to choose the product that best suits your needs and budget.
4. Choose a suitable EMI option: At checkout, ask the store executive about the Bajaj Finance Insta EMI Card or Easy EMI Loan. Confirm available tenure options and whether your chosen model comes with a zero down payment offer.
5. Complete payment and schedule installation: The in-store process is quick, and most partner stores offer installation as part of the purchase.

You can also check your loan eligibility online in advance by entering your mobile number and OTP, helping you plan your purchase better before visiting the store.

Bajaj Finance’s Smart Savings Calculator helps you unlock maximum savings every time you shop at partner stores. It brings together all available brand, dealer, and scheme offers—so you can see your total savings instantly and shop smarter with Easy EMIs.

1. Dealer offers - Grab exclusive in-store deals at over 1.5 lakh partner stores across India. Enjoy local discounts and special prices you will not find online.

2. Brand offers - Access limited-time discounts from top brands across electronics, appliances, and more. Discover brand-specific savings selected just for you.

3. Bajaj offers - Unlock exclusive Bajaj Finance deals on popular products—available only to our customers. More rewards, more value.

4. Scheme offers - Take advantage of time-sensitive offers on select EMI schemes. Get extra benefits after paying just 3 EMIs—visible during EMI selection at checkout.

Calculate your extra savings today!