The Big Billion Days Sale 2025 is here, and if you’ve been waiting to upgrade your smartphone without breaking the bank, this is the best time. Flipkart’s flagship sale brings massive discounts, bank offers, and exchange deals — making it the perfect opportunity to grab a feature-packed phone under ₹15,000.
Whether you’re looking for a powerful gaming device, an all-rounder camera phone, or a battery beast, we’ve listed the top 5 smartphones under ₹15,000 worth buying in this Big Billion Days Sale.
1. OPPO K13x 5G (New Entry)
Sale Price: Rs.15999 Offer price: ₹10,350 ( Flat Rs. 5,649 Off) * Card offer applied
Variant: 4GB RAM + 128GB Storage (Midnight Violet)
Battery: 6000mAh with 45W SUPERVOOC fast charging
Display: 6.6-inch FHD+ screen
Performance: Smooth 5G connectivity with AI enhancements
Camera: AI-powered lenses for smart photography
Don’t miss this steal deal! Buy OPPO K13x 5G Now!
2. vivo T4x 5G
Sale Price: ₹17,999 Offer Price: 13,499(Flat Rs.4500 Off) + 5% Cashback. * Card offer applied
Variant: 8GB RAM + 128GB Storage (Marine Blue)
Battery: 5000mAh with fast charging support
Display: 6.6-inch FHD+ AMOLED, 120Hz refresh rate
Performance: Smooth multitasking with powerful processor + 5G support
Camera: AI-powered camera system for sharp images
Special Deal: Extra ₹5000 off during the Big Billion Days Sale
Upgrade your performance & gaming experience! Buy VIVO T4x 5G Now!
3. Motorola G35 5G (New Entry)
Sale Price: ₹12,499 Offer Price: ₹8,999 (Flat ₹3,500 off) + 5% Cashback * Card offer applied
Variant: 4GB RAM + 128GB Storage (Midnight Black)
Battery: 5000mAh for long-lasting usage
Display: 6.5-inch FHD+ LCD, 90Hz refresh rate
Performance: Smooth everyday performance with 5G connectivity
Camera: AI-enhanced 50MP camera for clear photos
Special Deal: Extra ₹1,000 off in the Big Billion Days Sale
Grab a budget 5G smartphone under ₹9K! Buy Motorola G35 5G Now!
4. vivo T4 Lite 5G (New Entry)
Sale Price: ₹14,999 Offer Price: ₹10,999 (Flat ₹4,000 off) + 5 % Cashbacks * Card offer applied
Variant: 6GB RAM + 128GB Storage (Titanium Gold)
Battery: 5000mAh for long-lasting use
Display: 6.58-inch FHD+ AMOLED, 90Hz refresh rate
Performance: Smooth multitasking with 5G connectivity
Camera: AI-enhanced camera for bright and clear pictures
Special Offer: No cost EMI starting at ₹3,667/month
Stylish, powerful, and affordable — Buy vivo T4 Lite 5G Now!
5. Samsung Galaxy F05 (New Entry)
Sale Price: ₹9,999 Offer Price: ₹6,249 (Flat ₹3750 off) + 5% Cashback. * Card offer applied
Variant: 4GB RAM + 64GB Storage (Twilight Blue)
Battery: Massive 6000mAh for extended usage
Display: 6.5-inch HD+ screen
Performance: Smooth performance for everyday tasks
Camera: 13MP rear camera + 5MP front camera
Special Deal: Extra ₹3,750 off during the Big Billion Days Sale
Looking for an affordable big-battery phone? Buy Samsung Galaxy F05 Now!
Tips to Grab the Best Deals in Big Billion Days Sale
Use SBI/ICICI Bank Cards for an extra 10% instant discount.
Check exchange offers for additional savings.
Keep your wishlist ready before the sale begins because stock won’t wait for anybody.