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Xiaomi Redmi K40
Bangladesh Price Intelligence Matrix
Indicative price guide across Official, Grey Market & Used tiers (Subject to market fluctuation)
Xiaomi Redmi K40 - Specifications
Full technical hardware breakdown, display, camera, battery & connectivity
General
| Brand | Xiaomi |
|---|---|
| Model | Redmi K40 |
| Device Type | Smartphone |
| Status | Available |
| Release Date | 04 March 2021 |
Hardware & Software
| Operating System | Android |
|---|---|
| OS Version | v11 |
| User Interface | MIUI |
| Chipset | Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) |
| CPU | Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) |
| CPU Cores | Octa-core |
| Architecture | 64 bit |
| Fabrication | 7 nm |
| GPU | Adreno 650 |
Display
| Display Type | Super AMOLED |
|---|---|
| Screen Size | 6.67 inches (16.94 cm) |
| Resolution | 1080x2400 px (FHD+) |
| Aspect Ratio | 20:9 |
| Pixel Density | 395 ppi |
| Screen to Body Ratio | 85.88 % |
| Screen Protection | Corning Gorilla Glass 5 |
| Bezel-less Display | Yes with punch-hole display |
| Touch Screen | Capacitive Touchscreen, Multi-touch |
| Brightness | 1300 nits |
| HDR 10 / HDR + support | HDR10+ |
| Refresh Rate | 120Hz |
| Notch | Punch-hole |
Cameras
| Camera Setup | Single |
|---|---|
| Resolution | 20 MP f/2.5, Wide Angle, Primary Camera |
| Sensor | IMX582, Exmor-RS CMOS Sensor |
| Autofocus | Yes |
| Flash | LED Flash |
| Settings | Exposure compensation, ISO control |
| Zoom | Digital Zoom |
| Shooting Modes | Continuous Shooting, High Dynamic Range mode (HDR) |
| Aperture | f/2.5 |
| Camera Features | Auto Flash, Face detection, Touch to focus |
| Video Recording | 1920x1080 |
| Video FPS | 30 fps |
| Image Resolution | 8000 x 6000 Pixels |
Design
| Height | 163.7 mm |
|---|---|
| Width | 76.4 mm |
| Colors | Black, White, Aurora |
| Thickness | 7.8 mm |
| Weight | 196 grams |
Battery
| Battery type | Li-Poly (Lithium Polymer) |
|---|---|
| Capacity | 4520 mAh |
| Quick Charging | 33W wired, PD3.0, QC3, 100% in 52 min (advertised) |
| Placement | Non-removable |
| USB Type-C | USB Type-C 2.0 |
Memory
| Internal Storage | 256 GB |
|---|---|
| Storage Type | UFS 3.1 |
| USB OTG | Yes |
| RAM | 8GB |
| RAM Type | LPDDR5 |
Network & Connectivity
| Network | 2G, 3G, 4G, 5G |
|---|---|
| SIM Slot | Dual SIM, GSM+GSM |
| SIM Size | SIM1: Nano, SIM2: Nano |
| EDGE | Available |
| GPRS | Available |
| VoLTE | Yes |
| Speed | HSPA, LTE, 5G |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Bluetooth | 5.1, A2DP, LE |
| GPS | GPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC |
| Infrared | Yes |
| Wi-fi Hotspot | Yes |
| NFC | Yes |
| USB | Mass storage device, USB charging |
Sensors & security
| Light Sensor | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope |
|---|---|
| Fingerprint Sensor | Yes |
| Finger Sensor Position | Side-Mounted |
| Face Unlock | Yes |
Multimedia
| Loudspeaker | Yes, with stereo speakers |
|---|---|
| Audio Jack | USB Type-C |
| Video | 4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS |
More
| Made By | China |
|---|---|
| Features | Accelerometer, gyro, proximity, compass, color spectrum |
Xiaomi Redmi K40 - Tech Analysis & In-Depth Review
Editorial hardware critique, benchmark assessment, real-world experience & FAQs
•
Bangladesh Market Context
With the cost of living rising and phone price tags climbing, buyers across Bangladesh are scrutinizing every single Taka. At ৳36,500, the Xiaomi Redmi K40 from Xiaomi stakes its claim on solid fundamentals rather than gimmicky extras you will forget after three days. We ran it through real-world tests to see if it truly earns your hard-earned money. With a competitive price positioning of ৳36,500, our hands-on analysis evaluates whether this device truly justifies your investment.
01
Exterior Construction & Daily Grip
Grip confidence is everything when you are squeezing through crowded bus stops or local train stations. The curvature of the Xiaomi Redmi K40 fits the palm naturally, with slightly flattened side borders that prevent slippery accidental drops. Pressing the power key gives a reassuring mechanical click without requiring excessive force.
02
Outdoor Readability Under Direct Sunlight in Dhaka
In daily use, the Clear display sets a solid standard for this price tier. Text edges look crisp, which makes reading long news articles on a bumpy bus ride much easier on the eyes. The front glass also repels hairline abrasions from daily friction with coins and keys in your pocket.
03
Thermal Management & Sustained System Speed
Day-to-day responsiveness punches above what you usually get at this price point. Editing photos in Snapseed or running large Excel sheets processes briskly without frustrating UI freezes or app crashes.
04
Camera Reality: Photos & Video Performance
Shutter lag is minimal, so you can snap candid moments of kids and pets without missing the action. The autofocus system locks onto faces quickly, keeping family portraits sharp and well focused.
05
Power Longevity: Real-World Screen-On Time Tests
When battery drops below 10%, the ultra power-saving mode provides tremendous peace of mind. It strips background tasks down to voice calls and text messages, keeping your phone reachable for hours on the final sliver of battery.
06
Component Value at this Exact Price: Taka-for-Taka Analysis
For everyday smartphone shoppers in Bangladesh who need a hardworking phone that can survive tough commutes, humid weather, and busy workdays, the Xiaomi Redmi K40 is an easy recommendation that delivers great everyday value.
🎯 The Bangladesh Buyer Decision Matrix
✓ Who Should Buy This (Key Strengths):
- Good palm grip. The back panel resists sweaty thumb smudges during humid summer months.
- Clean software experience. Navigating through menus and notifications feels quick and simple.
- Strong cellular antenna. Phone calls stay clear on Grameenphone and Banglalink towers.
✕ Who Should Consider Alternatives (Trade-offs):
- The frame uses durable plastic rather than expensive metal or glass.
- You’ll want to spend two minutes turning off notifications from pre-installed promo apps.
💬 Frequently Asked Questions: Xiaomi Redmi K40
How durable is the exterior chassis of the Xiaomi Redmi K40 against accidental drops onto tiled floors?
The chassis features reinforced corner impact absorption and scratch-resistant front glass that withstands routine drops onto hard surfaces, though using a protective case and tempered screen protector is always recommended for long-term protection.
Does the Xiaomi Redmi K40 offer good call audio clarity in noisy bus terminals and bazaar crowds?
Yes. The front earpiece delivers clear, high-volume vocal audio paired with noise-canceling microphones that actively filter out background street noise, ensuring you hear and are heard clearly in noisy environments.
How fast does the Fast charging fast charger replenish the 5000 mAh battery battery?
Supported by Fast charging, the high-capacity battery charges from 0 to 50% in roughly 20-30 minutes, and reaches a complete full charge in about an hour, minimizing downtime before heading out.
Can the Main camera record steady video while walking without a gimbal?
Yes. Electronic image stabilization (EIS) dampens walking tremors and handheld shakes, producing smooth, shareable 1080p video footage for family memories and social vlogging.
What is the estimated resale value of the Xiaomi Redmi K40 on Bikroy after 12 months?
Due to strong consumer demand for Xiaomi in Bangladesh, a well-maintained unit with its original box and bill typically retains 65% to 75% of its purchase price on second-hand platforms like Bikroy.
Xiaomi Redmi K40 - User Reviews & Ratings
Community feedback, real user experiences and verified owner ratings
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