Apple iPhone 4 (32GB) vs Xiaomi Redmi K20 Pro (64GB)
Side by side comparison between Apple iPhone 4 vs Xiaomi Redmi K20 Pro phones, differences, pros, cons and full specifications. What's the better?
,
3.5"
IPS
IPS
640x960
5
MP
MP
0.3mp
512MB
RAM
RAM
Single-core
1420
mAh
mAh
(Non removable)
vs
6.39"
AMOLED
AMOLED
1080x2340
48
MP
MP
20mp
6GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Redmi K20 Pro (64GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
3 Advantages 
34 Advantages | 19 Common items in both devices |
| 60Hz |
| 16 million |
| Autofocus / LDAF/PDAF: laser/phase detection autofocus |
| EIS: Digital stabilization |
| Capacitive |
| Multitouch |
| Accelerometer |
| +12 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| Model | iPhone 4 (32GB) | Redmi K20 Pro (64GB) |
| Other model names | iPhone 4 | Xiaomi Redmi K20 Pro M1903F11A, M1903F11C, M1903F11T |
| Country or region available |  (Global, International) |  China |
| Brand | Apple | Xiaomi |
| Release date | 6/1/2010 | 6/1/2019 |
| Depth | 9.3 millimeters (0.37 inches) | 8.8 millimeters (0.35 inches) |
| Size (width x height) | 58.66 x 115.2 millimeters (2.31 x 4.54 in) | 74.3 x 156.7 millimeters (2.93 x 6.17 in) |
| Weight | 137 grams (4.8 ounces) | 191 grams (6.69 ounces) |
| Build, materials | Stainless steel body, glass front/back | Aluminum frame, glass front/back |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| Display type | TFT LED-Backlit IPS LCD | Super AMOLED |
| Screen size | 3.5" inches | 6.39" inches |
| Screen-to-body ratio | ~54% (screen-to-body ratio) | ~86.1% (screen-to-body ratio) |
| Display resolution | 640x960 pixels (3:2) | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch 5-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 330 PPI | 403 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass | Gorilla Glass 5 |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | 600nits[typ] HDR10 |
🤖 Operating System | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| System version | iOS 4.0 | Android 9.0 Pie |
| Firmware update | iOS 7.0 | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| Chipset | 32bit: Apple A4 (45nm) | 64bit: Qualcomm Snapdragon 855 (SM8150) (7nm) |
| CPU | Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core) | Octa-core, 3 processors: 1x 2.84GHz Kryo 485 (Single-core) 3x 2.42GHz Kryo 485 (Triple-core) 4x 1.78GHz Kryo 485 (Quad-core) |
| GPU graphical controller | PowerVR SGX535 | Qualcomm Adreno 640 (585MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| RAM memory | 512MB LPDDR | 6GB LPDDR4X |
| Internal storage | 32GB (28GB available) Flash (EEPROM) | 64GB (49GB available) UFS 2.1 |
| External storage | Not supported | Not supported |
📶 Mobile networks | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
| SIM card | 1 slot (Single-SIM) micro-SIM (3FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 7.2/5.76 Mbps | 1024/150 Mbps |
| Network technology | 2G, 3G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | CDMA 800 (China), GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 | MZB7748IN, MZB7749IN, MZB7750IN version: UMTS 850/900/1900/2100 M1903F11A, M1903F11C, M1903F11T version: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100 |
| Primary 4G network | Not supported | LTE Cat16/13 VoLTE MZB7748IN, MZB7749IN, MZB7750IN version: LTE (Bands 1, 3, 5, 7, 8) TD-LTE (Bands 38, 40, 41) M1903F11A, M1903F11C, M1903F11T version: LTE (Bands 1, 3, 5, 7, 8) TD-LTE (Bands 34, 38, 39, 40, 41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | CSD, GPRS, EDGE, UMTS, HSDPA, HSUPA | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
📷 Camera | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| Back camera (main camera) | 5 megapixels | (triple camera) 48 megapixels 8MP telephoto f/2.453mm1/4"1.12µmPDAF2x-optical-zoom 13MP ultrawide f/2.412mm1/3"1.12µm |
| Main camera resolution | 2592x1936 pixels | 8000x6000 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | 4K UHD (3840x2160) 60 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | f/2.8 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | 26mm (lens) |
| Sensor size | 1/3.2" inches | 1/2" inches |
| Pixel size | 1.75µm pixel | 0.8µm pixel |
| Autofocus | Autofocus | LDAF/PDAF: laser/phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Digital and optical zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo only main camera | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| Front camera (secondary) | 0.3 megapixels | 20 megapixels *Motorized pop-up camera (slider) |
| Front camera resolution | 640x480 pixels | 5184x3840 pixels |
| Video recording (secondary) | VGA (720x480) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | 0.8µm pixel |
🔉 Sound and multimedia | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| Loudspeaker | Mono sound (not stereo) | Supported |
| Active noise cancellation | 1 microphone | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MPEG4 | MP4, H.265, H.264, H.263, XviD |
| Audio formats | MP3, iTunes | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| USB | USB 2.0 proprietary connector | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Proprietary TV-out | Not supported |
| Bluetooth | 2.1 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| Sensors | Accelerometer Compass Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 1420 mAh | 4000 mAh |
| Charger, watts | 5W (5V/1A) Wired charging | 27W Wired fast charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 12 hours | feature not registered |
| Standby | 300 hours (12.5 days) | feature not registered |
➕ Other features | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS, MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized with tutorial | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, White • Videocalling over Wi-Fi only • iCloud service | • Colors: Carbon black, Flame red, Glacier blue • MIUI 10 • HDR display • 24-bit/192kHz audio • Quick Charge 4+ |
☢️ Radiation rate | ||
| iPhone 4 (32GB) | Redmi K20 Pro (64GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.17W/kg (head), 1.11W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.93W/kg (head), 0.74W/kg (body) | feature not registered |