Product
Xiaomi Mi 4i
Xiaomi Mi 4i
Realme C73
Realme C73
Battery
Charging 10W wired, QC1 15W wired 5W reverse wired
Talk time Up to 35 h (3G) -
Type Li-Ion 3120 mAh, non-removable 6000 mAh
Body
Build Glass front (Gorilla Glass), plastic back, plastic frame -
Dimensions 138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in) 165.7 x 76.2 x 7.9 mm (6.52 x 3.00 x 0.31 in)
SIM Dual SIM (Micro-SIM, dual stand-by) Nano-SIM + Nano-SIM
Weight 130 g (4.59 oz) 197 g (6.95 oz)
  - IP64 dust tight and water resistant (water splashes) Drop resistant up to 2m MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
Comms
Bluetooth 4.1, A2DP 5.3, A2DP, LE
NFC No No
Positioning GPS, GLONASS, BDS GPS, GALILEO, GLONASS, QZSS, BDS
Radio Stereo FM radio No
USB microUSB 2.0, OTG USB Type-C 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band
Display
Protection Corning scratch-resistant glass -
Resolution 1080 x 1920 pixels, 16:9 ratio (~441 ppi density) 720 x 1604 pixels, 20:9 ratio (~264 ppi density)
Size 5.0 inches, 68.9 cm2 (~71.7% screen-to-body ratio) 6.67 inches, 107.2 cm2 (~84.9% screen-to-body ratio)
Type IPS LCD IPS LCD, 120Hz, 625 nits
Features
Sensors Accelerometer, gyro, proximity, compass Fingerprint (side-mounted), accelerometer, proximity, compass
Launch
Announced 2015, April. Released 2015, April 2025, June 02
Status Discontinued Available. Released 2025, June 02
Main Camera
Features Dual-LED dual-tone flash, panorama, HDR LED flash, panorama
Single 13 MP, f/2.0, AF 32 MP, f/1.8, 27mm (wide), 1/3.1", PDAF
Video 1080p@30fps, 480p@120fps 1080p@30fps
Memory
Card slot No microSDXC (uses shared SIM slot)
Internal 16GB 2GB RAM, 32GB 2GB RAM 64GB 4GB RAM, 128GB 4GB RAM
  eMMC 4.5 -
Misc
Colors Dark Gray, Black, White, Yellow, Blue, Pink Jade Green, Crystal Purple, Onyx Black
Models 2015015 -
SAR 0.51 W/kg (head)     0.60 W/kg (body)     -
Network
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 1900 / 2100 HSDPA 850 / 900 / 2100
4G bands 3, 7, 38, 39, 40, 41 1, 3, 5, 8, 28, 40, 41
5G bands - 1, 3, 5, 8, 28, 40, 41, 77, 78 SA/NSA
Speed HSPA, LTE Cat4 150/50 Mbps HSPA, LTE, 5G
Technology GSM / HSPA / LTE GSM / HSPA / LTE / 5G
  TD-SCDMA -
Our Tests
Battery (old) Endurance rating 67h -
Camera Photo / Video -
Display Contrast ratio: 1055:1 (nominal), 2.641 (sunlight) -
Loudspeaker Voice 63dB / Noise 65dB / Ring 68dB -
Performance Basemark X: 4875 -
Platform
Chipset Qualcomm MSM8939 Snapdragon 615 (28 nm) Mediatek Dimensity 6300 (6 nm)
CPU Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Adreno 405 Mali-G57 MC2
OS Android 5.0.2 (Lollipop), MIUI 8.2 Android 15, Realme UI 6.0
Selfie camera
Features - Panorama
Single 5 MP, f/1.8 8 MP, f/2.0, (wide)
Video 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
  - 24-bit/192kHz Hi-Res audio