Realme 8i (128GB/4GB) vs Xiaomi Redmi 9 Prime (128GB)
Side by side comparison between Realme 8i vs Xiaomi Redmi 9 Prime phones, differences, pros, cons and full specifications. What's the better?
,
6.6"
IPS
IPS
1080x2412
50
MP
MP
16mp
4GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
6.53"
IPS
IPS
1080x2340
13
MP
MP
8mp
4GB
RAM
RAM
Octa-core
5020
mAh
mAh
(Non removable)
What's the better phone? Realme 8i (128GB/4GB)
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!
16 Advantages 
4 Advantages | 34 Common items in both devices |
| 4GB LPDDR4X |
| 128GB (104GB available) / 128GB (106GB available) |
| Until 1TB microSD, microSDXC / Until 512GB microSD, microSDXC |
| Plastic body, glass front |
| TFT IPS LCD |
| 16 million |
| LED flash |
| +27 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 | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| Model | Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) |
| Other model names | Realme 8i RMX3151 (128GB+4GB RAM) | Xiaomi Redmi 9 Prime (M2004J19PI) |
| Country or region available |  (Global, International) |  India |
| Brand | Realme | Xiaomi |
| Release date | 9/14/2021, Announced: 9/9/2021 | 8/4/2020 |
| Depth | 8.5 millimeters (0.33 inches) | 9.1 millimeters (0.36 inches) |
| Size (width x height) | 75.5 x 164.1 millimeters (2.97 x 6.46 in) | 77.01 x 163.32 millimeters (3.03 x 6.43 in) |
| Weight | 194 grams (6.79 ounces) | 198 grams (6.93 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | Not supported | Water repellent nano-coating (don't immerse) |
📲 Display | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 6.6" inches | 6.53" inches |
| Screen-to-body ratio | ~84.6% (screen-to-body ratio) | ~83.2% (screen-to-body ratio) |
| Display resolution | 1080x2412 pixels (20:9) | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 400 PPI | 395 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | 120Hz | 60Hz |
| Display features | 600nits[peak] | 400nits[typ] |
🤖 Operating System | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| System version | Android 11 | Android 10 |
| Firmware update | feature not registered | feature not registered |
| User Interface | Realme UI 2.0 | feature not registered |
⚙️ Processor | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| Chipset | 64bit: MediaTek Helio G96 (12nm) | 64bit: MediaTek Helio G80 (MT6769V/CU) (12nm) |
| CPU | Octa-core, 2 processors: 2x 2.05GHz ARM Cortex-A76 (Dual-core) 6x 2GHz ARM Cortex-A55 (Hexa-core) | Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core) |
| GPU graphical controller | ARM Mali-G57 MC2 (850MHz) | ARM Mali-G52 MC2 (950MHz) |
| Performance (benchmark) | AnTuTu: 350000 (v9) | feature not registered |
💽 Memory and storage | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| RAM memory | 4GB LPDDR4X | 4GB LPDDR4X |
| Internal storage | 128GB (104GB available) UFS 2.1 | 128GB (106GB available) eMMC 5.1 |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 400/150 Mbps | 300/50 Mbps |
| Network technology | 2G, 3G, 4G | 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 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat13 (1, 3, 5, 8) TD-LTE (38, 40, 41) VoLTE | LTE Cat6 (1, 3, 5, 8) TD-LTE (40, 41) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/2100 | Not supported |
| Secondary 4G network | LTE Cat13 (1, 3, 5, 8) TD-LTE (38, 40, 41) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE |
📷 Camera | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| Back camera (main camera) | (triple camera) 50 megapixels 2MP macro f/2.4 2MP depth f/2.4 | (quad camera) 13 megapixels 8MP ultrawide f/2.2118°1/4.0"1.12µm 5MP macro f/2.4 2MP depth f/2.4 |
| Main camera resolution | 8160x6120 pixels | 4128x3096 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/2.2 (aperture) |
| Focal length | 26mm (lens) | 28mm (lens) |
| Sensor size | 1/2.76" inches | 1/3.1" inches |
| Pixel size | 0.64µm pixel | 1.12µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| Front camera (secondary) | 16 megapixels | 8 megapixels |
| Front camera resolution | 4608x3456 pixels | 3264x2448 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.1 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | 27mm (lens) |
| Sensor size | 1/3" inches | 1/4" inches |
| Pixel size | 1µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| Loudspeaker | Mono sound (not stereo) | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | USB Type-C (reversible) | USB Type-C (reversible) |
| Bluetooth | 5.1 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, 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, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5000 mAh | 5020 mAh |
| Charger, watts | 18W Wired fast charging | 18W Wired fast charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | feature not registered | 31 hours (1.3 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), 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 | 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: Space Black, Space Purple • Screen film protector • Case protector | • Colors: Space Blue, Mint Green, Matte Black, Sunrise Flare • MIUI 11 • 10W charger included |
☢️ Radiation rate | ||
| Realme 8i (128GB/4GB) | Redmi 9 Prime (128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.85W/kg (head), 0.42W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |