The Samsung Galaxy M17 5G at ₹17,999 is our spec-led pick under ₹20,000 for its FHD+ Super AMOLED screen and main-camera OIS; the Redmi 15A 5G at ₹15,890 suits buyers prioritising declared battery capacity and an included charger. The Galaxy M07 at ₹11,999 is the cheaper 4G fallback, not another phone in the ₹15,000–₹20,000 tier.
These are the exact Amazon variants checked on 22 October 2026: M17 Sapphire Black 4GB/128GB, Redmi Awesome Blue 4GB/128GB and M07 Black 4GB/64GB. Prices exclude exchange, card offers and optional add-ons. All three selected offers showed in stock and free delivery to Madurai 625016. That is a location-specific display, not a nationwide delivery promise or a completed checkout.
The Shortlist
| Phone and selected variant | Item price | Best for | Main compromise |
|---|---|---|---|
| Samsung Galaxy M17 5G, Sapphire Black, 4GB/128GB | ₹17,999 | FHD+ AMOLED and declared main-camera OIS | Charger sold separately; 4GB physical RAM |
| Redmi 15A 5G, Awesome Blue, 4GB/128GB | ₹15,890 | Larger declared battery and charger in the box | HD+ screen and 15W charging |
| Samsung Galaxy M07, Black, 4GB/64GB | ₹11,999 | Spending less when 4G is enough | No 5G, less storage and no charger |
Samsung Galaxy M17 5G: Best for AMOLED and OIS on Paper
The selected M17 listing is explicitly 4GB RAM and 128GB storage. Its attraction is the combination of a 6.7-inch, 1080 × 2340 Super AMOLED display, 90Hz refresh rate and a 50MP main camera with optical image stabilisation. Samsung also lists 5MP and 2MP rear cameras and a 13MP front camera. These are declared features, not evidence of better photographs in every scene.
The matching Samsung 4GB reference identifies Exynos 1330, a typical 5000mAh battery and 25W charging support. Choose it over the Redmi for screen resolution and AMOLED technology, rather than assuming that a bigger refresh-rate number settles the comparison. It also lists Gorilla Glass Victus and IP54; neither is a promise against every accident.
The adapter is sold separately. ₹17,999 is the handset price, not a verified phone-and-charger total. We have not established a current compatible-adapter price, so check that separately before treating the purchase as within a strict all-in ₹20,000 limit. Samsung's reference dates the launch to 10 October 2025: this is a current-price shortlist, not a fresh October 2026 launch story.
Redmi 15A 5G: Best for Battery Capacity and Box Contents
The Awesome Blue 4GB/128GB listing is the lower-priced 5G option here. Xiaomi's official specifications list a typical 6300mAh battery, 15W maximum charging and a 15W inbox adapter. That is a useful package distinction if you do not already own a compatible charger. Battery capacity alone does not establish how many hours either phone will last.
The same reference identifies a T8300 5G processor, LPDDR4X RAM and UFS 2.2 storage. Its 6.9-inch HD+ display supports refresh rates up to 120Hz. That is a larger diagonal and a higher listed refresh-rate ceiling than the M17, but not the M17's FHD+ resolution or AMOLED technology. The official camera declarations are 32MP rear and 8MP front.
The price needs an explicit correction to the earlier research. That capture showed ₹15,948.99, while the whole-rupee helper omitted the 99 paise. Our fresh required helper now prints ₹15,890, and the selected offer's core-price accessibility label independently says ₹15,890.00. We therefore use ₹15,890 today, not the old fractional price or an invented rounded version of it. We also use Xiaomi's processor declaration rather than Amazon's unrelated generic desktop-CPU metadata.
Samsung Galaxy M07: Best for a Cheaper 4G Fallback
The Black 4GB/64GB M07 is included because a ₹20,000 ceiling need not become a spending target. At ₹11,999, it is substantially cheaper than the two 5G picks. It is not equivalent: its mobile-network specification stops at 4G, and its selected storage capacity is 64GB rather than 128GB.
Samsung's M07 reference and the selected listing identify MediaTek Helio G99, a 6.7-inch HD+ display with 90Hz refresh rate, a typical 5000mAh battery and 25W charging support. The listing declares a 50MP main camera and an 8MP front camera. Do not transfer the M17's AMOLED or OIS specifications to this model because both names start with Galaxy M.
The selected Amazon title explicitly says without charger. As with the M17, charging support describes the phone's capability, not an adapter included at this price. Pick the M07 only if saving money matters more than 5G and the extra built-in storage. We are not presenting it as a third higher-budget 5G recommendation.
How we picked
We compared exact selected Amazon ASINs, current item prices, stock displays and delivery information with manufacturer specifications on 22 October 2026. We read pages rather than using these phones. This is a specification-and-price comparison, not a report of camera results, gaming frame rates, call quality or battery runtime.
Each phone has 4GB of physical RAM in the selected offer. Virtual or extended RAM is not extra physical memory. Samsung's generic M17 page ending in sm-m176bzkdins describes 8GB, so we selected its separate sm-m176bzkains 4GB reference instead. The earlier Galaxy M16 ASIN was unavailable and selected a different memory variant; it is excluded rather than carried forward with an old price. No matching live deal was returned for these three exact ASINs during our deal check.
The catch
The two Samsung prices do not include a wall charger. We have not verified an accessory-inclusive checkout total, adapter offer or delivery outside the displayed PIN code. Confirm the seller, invoice, selected memory, box contents and final payable amount before ordering. Optional protection plans, exchange values and conditional bank savings are not part of these item prices.
Update promises also need context. Samsung advertises six generations of OS upgrades and six years of security updates for these models, but that does not mean six new years begin when you purchase an older handset. The M17 reference gives a security-update period ending 30 September 2031. Xiaomi lists four years of Android updates and six years of security updates for the Redmi; release schedules and remaining support should be checked separately.
FAQs
Which is the best phone under 20000 for a better screen on paper?
The Galaxy M17 5G has the strongest screen specification in this shortlist if you prioritise FHD+ resolution and Super AMOLED. The Redmi offers up to 120Hz versus the M17's 90Hz, but its resolution is HD+. Refresh rate is only one part of the decision.
Which phone under ₹20,000 includes a charger?
Xiaomi explicitly lists a 15W adapter in the Redmi 15A 5G package. The selected Galaxy M07 is without charger, and Samsung says the M17's 25W fast charger is sold separately. Reconfirm the actual seller's package before paying.
Is the cheapest pick also a 5G phone?
No. The ₹11,999 Galaxy M07 is the 4G fallback. The ₹15,890 Redmi 15A and ₹17,999 Galaxy M17 are the 5G choices here. If 5G is a requirement, remove the M07 from your shortlist rather than treating its lower price as a like-for-like saving.